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perldoc
perldoc looks up documentation in .pod format that is embedded in the perl installation tree or in a perl script, and displays it using a variety of formatters. This is primarily used for the documentation for the perl library modules. Your system may also have man pages installed for those modules, in which case you ...
perldoc - Look up Perl documentation in Pod format.
perldoc [-h] [-D] [-t] [-u] [-m] [-l] [-U] [-F] [-i] [-V] [-T] [-r] [-d destination_file] [-o formatname] [-M FormatterClassName] [-w formatteroption:value] [-n nroff-replacement] [-X] [-L language_code] PageName|ModuleName|ProgramName|URL Examples: perldoc -f BuiltinFunction perldoc -L it -f BuiltinFunction perldoc -q...
-h Prints out a brief help message. -D Describes search for the item in detail. -t Display docs using plain text converter, instead of nroff. This may be faster, but it probably won't look as nice. -u Skip the real Pod formatting, and just show the raw Pod source (Unformatted) -m module Display the entire modul...
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grpc_ruby_plugin
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gmd5sum
Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input. -b, --binary read in binary mode -c, --check read checksums from the FILEs and check them --tag create a BSD-style checksum -t, --text read in text mode (default) -z, --zero end each output line with NUL, not newline, and dis...
md5sum - compute and check MD5 message digest
md5sum [OPTION]... [FILE]...
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combine_lang_model
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gresource
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converttops
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flac
flac is a command-line tool for encoding, decoding, testing and analyzing FLAC streams. GENERAL USAGE flac supports as input RIFF WAVE, Wave64, RF64, AIFF, FLAC or Ogg FLAC format, or raw interleaved samples. The decoder currently can output to RIFF WAVE, Wave64, RF64, or AIFF format, or raw interleaved samples. flac ...
flac - Free Lossless Audio Codec
flac [ OPTIONS ] [ infile.wav | infile.rf64 | infile.aiff | infile.raw | infile.flac | infile.oga | infile.ogg | - ... ] flac [ -d | --decode | -t | --test | -a | --analyze ] [ OPTIONS ] [ infile.flac | infile.oga | infile.ogg | - ... ]
A summary of options is included below. For a complete description, see the HTML documentation. GENERAL OPTIONS -v, --version Show the flac version number -h, --help Show basic usage and a list of all options -H, --explain Show detailed explanation of usage and all options -d, --decode Decode (the default behavior is t...
Some common encoding tasks using flac: flac abc.wav Encode abc.wav to abc.flac using the default compression setting. abc.wav is not deleted. flac --delete-input-file abc.wav Like above, except abc.wav is deleted if there were no errors. flac --delete-input-file -w abc.wav Like above, except abc.wav is deleted if there...
jsonschema
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avifenc
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sourcery
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key_app
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pdfimages
Pdfimages saves images from a Portable Document Format (PDF) file as Portable Pixmap (PPM), Portable Bitmap (PBM), Portable Network Graphics (PNG), Tagged Image File Format (TIFF), JPEG, JPEG2000, or JBIG2 files. Pdfimages reads the PDF file PDF-file, scans one or more pages, and writes one file for each image, image-r...
pdfimages - Portable Document Format (PDF) image extractor (version 3.03)
pdfimages [options] PDF-file image-root
-f number Specifies the first page to scan. -l number Specifies the last page to scan. -png Change the default output format to PNG. -tiff Change the default output format to TIFF. -j Write images in JPEG format as JPEG files instead of the default format. The JPEG file is identical to the JPEG data stored in th...
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display_to_hlg
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aarch64-apple-darwin23-gcc-nm-13
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ristsender
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gunexpand
Convert blanks in each FILE to tabs, writing to standard output. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --all convert all blanks, instead of just initial blanks --first-only convert only leading sequences of blanks (overrides -a...
unexpand - convert spaces to tabs
unexpand [OPTION]... [FILE]...
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gsort
Write sorted concatenation of all FILE(s) to standard output. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. Ordering options: -b, --ignore-leading-blanks ignore leading blanks -d, --dictionary-order consider only blanks and alphanumeric c...
sort - sort lines of text files
sort [OPTION]... [FILE]... sort [OPTION]... --files0-from=F
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tor
Tor is a connection-oriented anonymizing communication service. Users choose a source-routed path through a set of nodes, and negotiate a "virtual circuit" through the network. Each node in a virtual circuit knows its predecessor and successor nodes, but no other nodes. Traffic flowing down the circuit is unwrapped by ...
tor - The second-generation onion router
tor [OPTION value]...
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myisamchk
The myisamchk utility gets information about your database tables or checks, repairs, or optimizes them. myisamchk works with MyISAM tables (tables that have .MYD and .MYI files for storing data and indexes). You can also use the CHECK TABLE and REPAIR TABLE statements to check and repair MyISAM tables. See Section 13...
myisamchk - MyISAM table-maintenance utility
myisamchk [options] tbl_name ...
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patcheck
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env_parallel.bash
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ocsptool
On verification Responses are typically signed/issued by designated certificates or certificate authorities and thus this tool requires on verification the certificate of the issuer or the full certificate chain in order to determine the appropriate signing authority. The specified certificate of the issuer is assumed ...
ocsptool - GnuTLS OCSP tool
ocsptool [-flags] [-flag [value]] [--option-name[[=| ]value]] All arguments must be options.
-d num, --debug=num Enable debugging. This option takes an integer number as its argument. The value of num is constrained to being: in the range 0 through 9999 Specifies the debug level. -V, --verbose More verbose output. --infile=file Input file. --outfile=str Output file. --ask=server name|url Ask an OCSP/HTTP ser...
Print information about an OCSP request To parse an OCSP request and print information about the content, the -i or --request-info parameter may be used as follows. The -Q parameter specify the name of the file containing the OCSP request, and it should contain the OCSP request in binary DER format. $ ocsptool -i -Q o...
redis-sentinel
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gcc-ranlib-13
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accelerate-estimate-memory
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nginx
nginx (pronounced “engine x”) is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server. It is known for its high performance, stability, rich feature set, simple configuration, and low resource consumption. The options are as follows: -?, -h Print help. -c file Use an alternati...
nginx – HTTP and reverse proxy server, mail proxy server
nginx [-?hqTtVv] [-c file] [-e file] [-g directives] [-p prefix] [-s signal]
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Test configuration file ~/mynginx.conf with global directives for PID and quantity of worker processes: nginx -t -c ~/mynginx.conf \ -g "pid /var/run/mynginx.pid; worker_processes 2;" SEE ALSO Documentation at http://nginx.org/en/docs/. For questions and technical support, please refer to http://nginx.org/en/support.ht...
2to3-3.11
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sndfile-concat
sndfile-concat generates a new output file by concatenating the audio data of two or more input files. The encoding of the output file is the encoding used in infile1. Audio data from the subsequent files are converted to this encoding. The only restriction is that the files must have the same number of channels. The ...
sndfile-concat – concatenate audio data from two or more audio files
sndfile-concat infile1 infile2 ... outfile
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pyrsa-decrypt
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glibtool
Provide generalized library-building support services.
libtool - manual page for libtool 2.4.7
libtool [OPTION]... [MODE-ARG]...
--config show all configuration variables --debug enable verbose shell tracing -n, --dry-run display commands without modifying any files --features display basic configuration information and exit --mode=MODE use operation mode MODE --no-warnings equivalent to '-Wnone' --preserve-dup-deps don't remove duplicate depend...
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wsdump
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imageio_download_bin
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mysql_secure_installation
This program enables you to improve the security of your MySQL installation in the following ways: • You can set a password for root accounts. • You can remove root accounts that are accessible from outside the local host. • You can remove anonymous-user accounts. • You can remove the test database (which by de...
mysql_secure_installation - improve MySQL installation security
mysql_secure_installation
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tqdm
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ahost
Look up the DNS A or AAAA record associated with HOST (a hostname or an IP address). This utility comes with the c-ares asynchronous resolver library.
ahost - print the A or AAAA record associated with a hostname or IP address
ahost [OPTION]... HOST...
-d Print some extra debugging output. -h, -? Display this help and exit. -t type If type is "a", print the A record. If type is "aaaa", print the AAAA record. If type is "u", look for both AAAA and A records (default). -s server Set the server list to use for DNS lookups. -D domain Specify the domain to search ins...
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gettext
The gettext program translates a natural language message into the user's language, by looking up the translation in a message catalog. Display native language translation of a textual message. -d, --domain=TEXTDOMAIN retrieve translated messages from TEXTDOMAIN -c, --context=CONTEXT specify context for MSGID -e en...
gettext - translate message
gettext [OPTION] [[TEXTDOMAIN] MSGID] gettext [OPTION] -s [MSGID]...
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hmac_demo
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gtester-report
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murge
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optuna
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gshuf
Write a random permutation of the input lines to standard output. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -e, --echo treat each ARG as an input line -i, --input-range=LO-HI treat each number LO through HI as an input line -n, --head-...
shuf - generate random permutations
shuf [OPTION]... [FILE] shuf -e [OPTION]... [ARG]... shuf -i LO-HI [OPTION]...
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markdown-it
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gfmt
Reformat each paragraph in the FILE(s), writing to standard output. The option -WIDTH is an abbreviated form of --width=DIGITS. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -c, --crown-margin preserve indentation of first two lines -p, --...
fmt - simple optimal text formatter
fmt [-WIDTH] [OPTION]... [FILE]...
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pip3.11
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huggingface-cli
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glibtoolize
Prepare a package to use libtool.
libtoolize - manual page for libtoolize 2.4.7
libtoolize [OPTION]...
-c, --copy copy files rather than symlinking them --debug enable verbose shell tracing -n, --dry-run print commands rather than running them -f, --force replace existing files -i, --install copy missing auxiliary files --ltdl[=DIR] install libltdl sources [default: libltdl] --no-warnings equivalent to '-Wnone' --nonrec...
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gcov-dump-13
gcov-dump is a tool you can use in conjunction with GCC to dump content of gcda and gcno profile files offline.
gcov-dump - offline gcda and gcno profile dump tool
gcov-dump [-v|--version] [-h|--help] [-l|--long] [-p|--positions] [-r|--raw] [-s|--stable] gcovfiles
-h --help Display help about using gcov-dump (on the standard output), and exit without doing any further processing. -l --long Dump content of records. -p --positions Dump positions of records. -r --raw Print content records in raw format. -s --stable Print content in stable format usable for comparison. -v --version ...
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gettext.sh
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ctest
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aclocal-1.16
Generate 'aclocal.m4' by scanning 'configure.ac' or 'configure.in'
aclocal - manual page for aclocal 1.16.5
aclocal [OPTION]...
--automake-acdir=DIR directory holding automake-provided m4 files --system-acdir=DIR directory holding third-party system-wide files --diff[=COMMAND] run COMMAND [diff -u] on M4 files that would be changed (implies --install and --dry-run) --dry-run pretend to, but do not actually update any file --force always update ...
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rsa_verify_pss
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gfortran-13
The gfortran command supports all the options supported by the gcc command. Only options specific to GNU Fortran are documented here. All GCC and GNU Fortran options are accepted both by gfortran and by gcc (as well as any other drivers built at the same time, such as g++), since adding GNU Fortran to the GCC distribu...
gfortran - GNU Fortran compiler
gfortran [-c|-S|-E] [-g] [-pg] [-Olevel] [-Wwarn...] [-pedantic] [-Idir...] [-Ldir...] [-Dmacro[=defn]...] [-Umacro] [-foption...] [-mmachine-option...] [-o outfile] infile... Only the most useful options are listed here; see below for the remainder.
Here is a summary of all the options specific to GNU Fortran, grouped by type. Explanations are in the following sections. Fortran Language Options -fall-intrinsics -fallow-argument-mismatch -fallow-invalid-boz -fbackslash -fcray-pointer -fd-lines-as-code -fd-lines-as-comments -fdec -fdec-char-conversions -fdec-struct...
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c++-13
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avifdec
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ssl_mail_client
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convertsegfilestopdf
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xzless
xzless is a filter that displays text from compressed files to a terminal. Files supported by xz(1) are decompressed; other files are assumed to be in uncompressed form already. If no files are given, xzless reads from standard input. xzless uses less(1) to present its output. Unlike xzmore, its choice of pager cann...
xzless, lzless - view xz or lzma compressed (text) files
xzless [file...] lzless [file...]
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tiff2fsspec
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convertformat
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zstd
zstd is a fast lossless compression algorithm and data compression tool, with command line syntax similar to gzip(1) and xz(1). It is based on the LZ77 family, with further FSE & huff0 entropy stages. zstd offers highly configurable compression speed, from fast modes at > 200 MB/s per core, to strong modes with excelle...
zstd - zstd, zstdmt, unzstd, zstdcat - Compress or decompress .zst files
zstd [OPTIONS] [-|INPUT-FILE] [-o OUTPUT-FILE] zstdmt is equivalent to zstd -T0 unzstd is equivalent to zstd -d zstdcat is equivalent to zstd -dcf
Integer Suffixes and Special Values In most places where an integer argument is expected, an optional suffix is supported to easily indicate large integers. There must be no space between the integer and the suffix. KiB Multiply the integer by 1,024 (2^10). Ki, K, and KB are accepted as synonyms for KiB. MiB Mult...
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gunlink
Call the unlink function to remove the specified FILE. --help display this help and exit --version output version information and exit AUTHOR Written by Michael Stone. REPORTING BUGS GNU coreutils online help: <https://www.gnu.org/software/coreutils/> Report any translation bugs to <https://translationproject.org/team/...
unlink - call the unlink function to remove the specified file
unlink FILE unlink OPTION
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exrmakepreview
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msgcmp
Compare two Uniforum style .po files to check that both contain the same set of msgid strings. The def.po file is an existing PO file with the translations. The ref.pot file is the last created PO file, or a PO Template file (generally created by xgettext). This is useful for checking that you have translated each a...
msgcmp - compare message catalog and template
msgcmp [OPTION] def.po ref.pot
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mysql_test_event_tracking
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pyngrok
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lzcmp
xzcmp and xzdiff compare uncompressed contents of two files. Uncompressed data and options are passed to cmp(1) or diff(1) unless --help or --version is specified. If both file1 and file2 are specified, they can be uncompressed files or files in formats that xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), or lz4(1) can dec...
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
xzcmp [option...] file1 [file2] xzdiff ... lzcmp ... lzdiff ...
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mysql_ssl_rsa_setup
Note mysql_ssl_rsa_setup is deprecated. Instead, consider using MySQL server to generate missing SSL and RSA files automatically at startup (see the section called “Automatic SSL and RSA File Generation”). This program creates the SSL certificate and key files and RSA key-pair files required to support secure connectio...
mysql_ssl_rsa_setup - create SSL/RSA files
mysql_ssl_rsa_setup [options]
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mysql
mysql is a simple SQL shell with input line editing capabilities. It supports interactive and noninteractive use. When used interactively, query results are presented in an ASCII-table format. When used noninteractively (for example, as a filter), the result is presented in tab-separated format. The output format can b...
mysql - the MySQL command-line client
mysql [options] db_name
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pcre2-config
pcre2-config returns the configuration of the installed PCRE2 libraries and the options required to compile a program to use them. Some of the options apply only to the 8-bit, or 16-bit, or 32-bit libraries, respectively, and are not available for libraries that have not been built. If an unavailable option is encounte...
pcre2-config - program to return PCRE2 configuration
pcre2-config [--prefix] [--exec-prefix] [--version] [--libs8] [--libs16] [--libs32] [--libs-posix] [--cflags] [--cflags-posix]
--prefix Writes the directory prefix used in the PCRE2 installation for architecture independent files (/usr on many systems, /usr/local on some systems) to the standard output. --exec-prefix Writes the directory prefix used in the PCRE2 installation for architecture dependent files (normally the same as --prefix) to ...
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gd2topng
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missing_codec_desc
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watchgnupg
Most of the main utilities are able to write their log files to a Unix Domain socket if configured that way. watchgnupg is a simple listener for such a socket. It ameliorates the output with a time stamp and makes sure that long lines are not interspersed with log output from other utilities. This tool is not availa...
watchgnupg - Read and print logs from a socket
watchgnupg [--force] [--verbose] socketname
watchgnupg understands these options: --force Delete an already existing socket file. This option is implicitly used if no socket name has been given on the command line. --homedir DIR If no socket name is given on the command line, pass DIR to gpgconf so that the socket for a GnuPG running with DIR has its home direc...
$ watchgnupg --time-only This waits for connections on the local socket (e.g. ‘/var/run/user/1234/gnupg/S.log’) and shows all log entries. To make this work the option log-file needs to be used with all modules which logs are to be shown. The suggested entry for the configuration files is: log-file socket:// If the d...
gcsplit
Output pieces of FILE separated by PATTERN(s) to files 'xx00', 'xx01', ..., and output byte counts of each piece to standard output. Read standard input if FILE is - Mandatory arguments to long options are mandatory for short options too. -b, --suffix-format=FORMAT use sprintf FORMAT instead of %02d -f, --prefix=PREFIX...
csplit - split a file into sections determined by context lines
csplit [OPTION]... FILE PATTERN...
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pygmentize
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xzcat
xz is a general-purpose data compression tool with command line syntax similar to gzip(1) and bzip2(1). The native file format is the .xz format, but the legacy .lzma format used by LZMA Utils and raw compressed streams with no container format headers are also supported. In addition, decompression of the .lz format u...
xz, unxz, xzcat, lzma, unlzma, lzcat - Compress or decompress .xz and .lzma files
xz [option...] [file...] COMMAND ALIASES unxz is equivalent to xz --decompress. xzcat is equivalent to xz --decompress --stdout. lzma is equivalent to xz --format=lzma. unlzma is equivalent to xz --format=lzma --decompress. lzcat is equivalent to xz --format=lzma --decompress --stdout. When writing scripts that need to...
Integer suffixes and special values In most places where an integer argument is expected, an optional suffix is supported to easily indicate large integers. There must be no space between the integer and the suffix. KiB Multiply the integer by 1,024 (2^10). Ki, k, kB, K, and KB are accepted as synonyms for KiB. Mi...
Basics Compress the file foo into foo.xz using the default compression level (-6), and remove foo if compression is successful: xz foo Decompress bar.xz into bar and don't remove bar.xz even if decompression is successful: xz -dk bar.xz Create baz.tar.xz with the preset -4e (-4 --extreme), which is slower than the defa...
env_parallel.zsh
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myisampack
The myisampack utility compresses MyISAM tables. myisampack works by compressing each column in the table separately. Usually, myisampack packs the data file 40% to 70%. When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when...
myisampack - generate compressed, read-only MyISAM tables
myisampack [options] file_name ...
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generic_sum
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metaflac
Use metaflac to list, add, remove, or edit metadata in one or more FLAC files. You may perform one major operation, or many shorthand operations at a time. GENERAL USAGE metaflac is the command-line .flac file metadata editor. You can use it to list the contents of metadata blocks, edit, delete or insert blocks, and ...
metaflac - program to list, add, remove, or edit metadata in one or more FLAC files.
metaflac [ options ] [ operations ] FLACfile ...
--preserve-modtime Preserve the original modification time in spite of edits. --with-filename Prefix each output line with the FLAC file name (the default if more than one FLAC file is specified). This option has no effect for options exporting to a file, like –export-tags-to. --no-filename Do not prefix each output l...
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codecarbon
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g[
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unrar
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gwhoami
Print the user name associated with the current effective user ID. Same as id -un. --help display this help and exit --version output version information and exit AUTHOR Written by Richard Mlynarik. REPORTING BUGS GNU coreutils online help: <https://www.gnu.org/software/coreutils/> Report any translation bugs to <https...
whoami - print effective user name
whoami [OPTION]...
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autoreconf
Run 'autoconf' and, when needed, 'aclocal', 'autoheader', 'automake', 'autopoint' (formerly 'gettextize'), 'glibtoolize', 'intltoolize', and 'gtkdocize' to regenerate the GNU Build System files in specified DIRECTORIES and their subdirectories (defaulting to '.'). By default, it only remakes those files that are older ...
autoreconf - Update generated configuration files
autoreconf [OPTION]... [DIRECTORY]...
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gsplit
Output pieces of FILE to PREFIXaa, PREFIXab, ...; default size is 1000 lines, and default PREFIX is 'x'. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --suffix-length=N generate suffixes of length N (default 2) --additional-suffix=SUFF...
split - split a file into pieces
split [OPTION]... [FILE [PREFIX]]
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carbonboard
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signver
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dav1d
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gseq
Print numbers from FIRST to LAST, in steps of INCREMENT. Mandatory arguments to long options are mandatory for short options too. -f, --format=FORMAT use printf style floating-point FORMAT -s, --separator=STRING use STRING to separate numbers (default: \n) -w, --equal-width equalize width by padding with leading zeroes...
seq - print a sequence of numbers
seq [OPTION]... LAST seq [OPTION]... FIRST LAST seq [OPTION]... FIRST INCREMENT LAST
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gpg-agent
gpg-agent is a daemon to manage secret (private) keys independently from any protocol. It is used as a backend for gpg and gpgsm as well as for a couple of other utilities. The agent is automatically started on demand by gpg, gpgsm, gpgconf, or gpg-connect-agent. Thus there is no reason to start it manually. In case...
gpg-agent - Secret key management for GnuPG
gpg-agent [--homedir dir] [--options file] [options] gpg-agent [--homedir dir] [--options file] [options] --server gpg-agent [--homedir dir] [--options file] [options] --daemon [command_line]
Options may either be used on the command line or, after stripping off the two leading dashes, in the configuration file. --options file Reads configuration from file instead of from the default per- user configuration file. The default configuration file is named ‘gpg-agent.conf’ and expected in the ‘.gnupg’ directory...
It is important to set the environment variable GPG_TTY in your login shell, for example in the ‘~/.bashrc’ init script: export GPG_TTY=$(tty) If you enabled the Ssh Agent Support, you also need to tell ssh about it by adding this to your init script: unset SSH_AGENT_PID if [ "${gnupg_SSH_AUTH_SOCK_by:-0}" -ne $$ ]; th...
tensorboard
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pdffonts
Pdffonts lists the fonts used in a Portable Document Format (PDF) file along with various information for each font. If PDF-file is ´-', it reads the PDF file from stdin. The following information is listed for each font: name the font name, exactly as given in the PDF file (potentially including a subset prefix) typ...
pdffonts - Portable Document Format (PDF) font analyzer (version 3.03)
pdffonts [options] [PDF-file]
-f number Specifies the first page to analyze. -l number Specifies the last page to analyze. -subst List the substitute fonts that poppler will use for non embedded fonts. -opw password Specify the owner password for the PDF file. Providing this will bypass all security restrictions. -upw password Specify the user pas...
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sha1sum
Print or check SHA1 (160-bit) checksums. With no FILE, or when FILE is -, read standard input. -b, --binary read in binary mode -c, --check read checksums from the FILEs and check them --tag create a BSD-style checksum -t, --text read in text mode (default) -z, --zero end each output line with NUL, not newline, and di...
sha1sum - compute and check SHA1 message digest
sha1sum [OPTION]... [FILE]...
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transicc
lcms is a standalone CMM engine, which deals with the color management. It implements a fast transformation between ICC profiles. transicc is a lcms ColorSpace conversion calculator.
transicc - little cms ColorSpace conversion calculator.
transicc [options] [CGATSINPUT] [CGATSOUTPUT]
-b Black point compensation. -c NUM Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes) [defaults to 1]. -d NUM Observer adaptation state (abs.col. only), (0..1.0, float value) [defaults to 0.0]. -e Encoded representation of numbers is not float (Option -w=use 16 bits, Option -x=hexadecimal). -g Ma...
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exrstdattr
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wrjpgcom
wrjpgcom reads the named JPEG/JFIF file, or the standard input if no file is named, and generates a new JPEG/JFIF file on standard output. A comment block is added to the file. The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. Although the standard doesn't actually define what COM blocks are...
wrjpgcom - insert text comments into a JPEG file
wrjpgcom [ -replace ] [ -comment text ] [ -cfile name ] [ filename ]
Switch names may be abbreviated, and are not case sensitive. -replace Delete any existing COM blocks from the file. -comment text Supply text for new COM block on command line. -cfile name Read text for new COM block from named file. If you have only one line of comment text to add, you can provide it on the command li...
Add a short comment to in.jpg, producing out.jpg: wrjpgcom -c "View of my back yard" in.jpg > out.jpg Attach a long comment previously stored in comment.txt: wrjpgcom in.jpg < comment.txt > out.jpg or equivalently wrjpgcom -cfile comment.txt < in.jpg > out.jpg SEE ALSO cjpeg(1), djpeg(1), jpegtran(1), rdjpgcom(1) AUTHO...
combine_tessdata
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ffprobe
ffprobe gathers information from multimedia streams and prints it in human- and machine-readable fashion. For example it can be used to check the format of the container used by a multimedia stream and the format and type of each media stream contained in it. If a url is specified in input, ffprobe will try to open and...
ffprobe - ffprobe media prober
ffprobe [options] input_url
All the numerical options, if not specified otherwise, accept a string representing a number as input, which may be followed by one of the SI unit prefixes, for example: 'K', 'M', or 'G'. If 'i' is appended to the SI unit prefix, the complete prefix will be interpreted as a unit prefix for binary multiples, which are b...
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sha256sum
Print or check SHA256 (256-bit) checksums. With no FILE, or when FILE is -, read standard input. -b, --binary read in binary mode -c, --check read checksums from the FILEs and check them --tag create a BSD-style checksum -t, --text read in text mode (default) -z, --zero end each output line with NUL, not newline, and ...
sha256sum - compute and check SHA256 message digest
sha256sum [OPTION]... [FILE]...
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convertfilestopdf
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