instruction stringlengths 20 51 | output stringlengths 15 8.88k |
|---|---|
What is the detailed desciption of the `touch`? | Update the access and modification times of each FILE to the current time.
A FILE argument that does not exist is created empty, unless -c or -h is supplied.
A FILE argument string of - is handled specially and causes touch to change the times of the file associated
with standard output.
... |
What does the command `runcon` do? | runcon - run command with specified security context |
How is the `runcon` used? | runcon CONTEXT COMMAND [args]
runcon [ -c ] [-u USER] [-r ROLE] [-t TYPE] [-l RANGE] COMMAND [args] |
What is the detailed desciption of the `runcon`? | Run COMMAND with completely-specified CONTEXT, or with current or transitioned security context modified by one
or more of LEVEL, ROLE, TYPE, and USER.
If none of -c, -t, -u, -r, or -l, is specified, the first argument is used as the complete context. Any addi‐
tional arguments after COMMAND a... |
What does the command `stat` do? | stat - display file or file system status |
How is the `stat` used? | stat [OPTION]... FILE... |
What is the detailed desciption of the `stat`? | Display file or file system status.
Mandatory arguments to long options are mandatory for short options too.
-L, --dereference
follow links
-f, --file-system
display file system status instead of file status
--cached=MODE
specify how to use cache... |
What does the command `sleep` do? | sleep - delay for a specified amount of time |
How is the `sleep` used? | sleep NUMBER[SUFFIX]...
sleep OPTION |
What is the detailed desciption of the `sleep`? | Pause for NUMBER seconds. SUFFIX may be 's' for seconds (the default), 'm' for minutes, 'h' for hours or 'd'
for days. NUMBER need not be an integer. Given two or more arguments, pause for the amount of time specified
by the sum of their values.
--help display this help and exit
--... |
What does the command `pwd` do? | pwd - print name of current/working directory |
How is the `pwd` used? | pwd [OPTION]... |
What is the detailed desciption of the `pwd`? | Print the full filename of the current working directory.
-L, --logical
use PWD from environment, even if it contains symlinks
-P, --physical
avoid all symlinks
--help display this help and exit
--version
output version information and exit
... |
What does the command `nice` do? | nice - run a program with modified scheduling priority |
How is the `nice` used? | nice [OPTION] [COMMAND [ARG]...] |
What is the detailed desciption of the `nice`? | Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current
niceness. Niceness values range from -20 (most favorable to the process) to 19 (least favorable to the
process).
Mandatory arguments to long options are mandatory for short op... |
What does the command `chcon` do? | chcon - change file security context |
How is the `chcon` used? | chcon [OPTION]... CONTEXT FILE...
chcon [OPTION]... [-u USER] [-r ROLE] [-l RANGE] [-t TYPE] FILE...
chcon [OPTION]... --reference=RFILE FILE... |
What is the detailed desciption of the `chcon`? | Change the SELinux security context of each FILE to CONTEXT. With --reference,
change the security context of each FILE to that of RFILE.
Mandatory arguments to long options are mandatory for short options too.
--dereference
affect the referent of each symbolic link (this is t... |
What does the command `tail` do? | tail - output the last part of files |
How is the `tail` used? | tail [OPTION]... [FILE]... |
What is the detailed desciption of the `tail`? | Print the last 10 lines of each FILE to standard output. With more than one FILE, precede each with a header
giving the file name.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-c, --bytes=[+]NUM
... |
What does the command `false` do? | false - do nothing, unsuccessfully |
How is the `false` used? | false [ignored command line arguments]
false OPTION |
What is the detailed desciption of the `false`? | Exit with a status code indicating failure.
--help display this help and exit
--version
output version information and exit
NOTE: your shell may have its own version of false, which usually supersedes the version described here. Please
refer to your shell's documentation fo... |
What does the command `cat` do? | cat - concatenate files and print on the standard output |
How is the `cat` used? | cat [OPTION]... [FILE]... |
What is the detailed desciption of the `cat`? | Concatenate FILE(s) to standard output.
With no FILE, or when FILE is -, read standard input.
-A, --show-all
equivalent to -vET
-b, --number-nonblank
number nonempty output lines, overrides -n
-e equivalent to -vE
-E, --show-ends
disp... |
What does the command `env` do? | env - run a program in a modified environment |
How is the `env` used? | env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...] |
What is the detailed desciption of the `env`? | Set each NAME to VALUE in the environment and run COMMAND.
Mandatory arguments to long options are mandatory for short options too.
-i, --ignore-environment
start with an empty environment
-0, --null
end each output line with NUL, not newline
-u, --unset=NAME
... |
What does the command `printf` do? | printf - format and print data |
How is the `printf` used? | printf FORMAT [ARGUMENT]...
printf OPTION |
What is the detailed desciption of the `printf`? | Print ARGUMENT(s) according to FORMAT, or execute according to OPTION:
--help display this help and exit
--version
output version information and exit
FORMAT controls the output as in C printf. Interpreted sequences are:
\" double quote
\\ backslash
... |
What does the command `tr` do? | tr - translate or delete characters |
How is the `tr` used? | tr [OPTION]... STRING1 [STRING2] |
What is the detailed desciption of the `tr`? | Translate, squeeze, and/or delete characters from standard input, writing to standard output. STRING1 and
STRING2 specify arrays of characters ARRAY1 and ARRAY2 that control the action.
-c, -C, --complement
use the complement of ARRAY1
-d, --delete
delete charac... |
What does the command `vdir` do? | vdir - list directory contents |
How is the `vdir` used? | vdir [OPTION]... [FILE]... |
What is the detailed desciption of the `vdir`? | List information about the FILEs (the current directory by default). Sort entries alphabetically if none of
-cftuvSUX nor --sort is specified.
Mandatory arguments to long options are mandatory for short options too.
-a, --all
do not ignore entries starting with .
-A, --... |
What does the command `mv` do? | mv - move (rename) files |
How is the `mv` used? | mv [OPTION]... [-T] SOURCE DEST
mv [OPTION]... SOURCE... DIRECTORY
mv [OPTION]... -t DIRECTORY SOURCE... |
What is the detailed desciption of the `mv`? | Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.
Mandatory arguments to long options are mandatory for short options too.
--backup[=CONTROL]
make a backup of each existing destination file
-b like --backup but does not accept an argument
--debug
expl... |
What does the command `seq` do? | seq - print a sequence of numbers |
How is the `seq` used? | seq [OPTION]... LAST
seq [OPTION]... FIRST LAST
seq [OPTION]... FIRST INCREMENT LAST |
What is the detailed desciption of the `seq`? | 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,... |
What does the command `stty` do? | stty - change and print terminal line settings |
How is the `stty` used? | stty [-F DEVICE | --file=DEVICE] [SETTING]...
stty [-F DEVICE | --file=DEVICE] [-a|--all]
stty [-F DEVICE | --file=DEVICE] [-g|--save] |
What is the detailed desciption of the `stty`? | Print or change terminal characteristics.
Mandatory arguments to long options are mandatory for short options too.
-a, --all
print all current settings in human-readable form
-g, --save
print all current settings in a stty-readable form
-F, --file=DEVICE
... |
What does the command `rmdir` do? | rmdir - remove empty directories |
How is the `rmdir` used? | rmdir [OPTION]... DIRECTORY... |
What is the detailed desciption of the `rmdir`? | Remove the DIRECTORY(ies), if they are empty.
--ignore-fail-on-non-empty
ignore each failure to remove a non-empty directory
-p, --parents
remove DIRECTORY and its ancestors; e.g., 'rmdir -p a/b' is similar to 'rmdir a/b a'
-v, --verbose
output a diagnos... |
What does the command `mkfifo` do? | mkfifo - make FIFOs (named pipes) |
How is the `mkfifo` used? | mkfifo [OPTION]... NAME... |
What is the detailed desciption of the `mkfifo`? | Create named pipes (FIFOs) with the given NAMEs.
Mandatory arguments to long options are mandatory for short options too.
-m, --mode=MODE
set file permission bits to MODE, not a=rw - umask
-Z set the SELinux security context to default type
--context[=CTX]
... |
What does the command `basenc` do? | basenc - Encode/decode data and print to standard output |
How is the `basenc` used? | basenc [OPTION]... [FILE] |
What is the detailed desciption of the `basenc`? | basenc encode or decode FILE, or standard input, to standard output.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
--base64
same as 'base64' program (RFC4648 section 4)
--base64url
... |
What does the command `tac` do? | tac - concatenate and print files in reverse |
How is the `tac` used? | tac [OPTION]... [FILE]... |
What is the detailed desciption of the `tac`? | Write each FILE to standard output, last line first.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-b, --before
attach the separator before instead of after
-r, --regex
interpret ... |
What does the command `hostid` do? | hostid - print the numeric identifier for the current host |
How is the `hostid` used? | hostid [OPTION] |
What is the detailed desciption of the `hostid`? | Print the numeric identifier (in hexadecimal) for the current host.
--help display this help and exit
--version
output version information and exit |
What does the command `stdbuf` do? | stdbuf - Run COMMAND, with modified buffering operations for its standard streams. |
How is the `stdbuf` used? | stdbuf OPTION... COMMAND |
What is the detailed desciption of the `stdbuf`? | Run COMMAND, with modified buffering operations for its standard streams.
Mandatory arguments to long options are mandatory for short options too.
-i, --input=MODE
adjust standard input stream buffering
-o, --output=MODE
adjust standard output stream buffering
... |
What does the command `dircolors` do? | dircolors - color setup for ls |
How is the `dircolors` used? | dircolors [OPTION]... [FILE] |
What is the detailed desciption of the `dircolors`? | Output commands to set the LS_COLORS environment variable.
Determine format of output:
-b, --sh, --bourne-shell
output Bourne shell code to set LS_COLORS
-c, --csh, --c-shell
output C shell code to set LS_COLORS
-p, --print-database
output defaults
... |
What does the command `uname` do? | uname - print system information |
How is the `uname` used? | uname [OPTION]... |
What is the detailed desciption of the `uname`? | Print certain system information. With no OPTION, same as -s.
-a, --all
print all information, in the following order, except omit -p and -i if unknown:
-s, --kernel-name
print the kernel name
-n, --nodename
print the network node hostname
-r, -... |
What does the command `sum` do? | sum - checksum and count the blocks in a file |
How is the `sum` used? | sum [OPTION]... [FILE]... |
What is the detailed desciption of the `sum`? | Print or check BSD (16-bit) checksums.
With no FILE, or when FILE is -, read standard input.
-r use BSD sum algorithm (the default), use 1K blocks
-s, --sysv
use System V sum algorithm, use 512 bytes blocks
--help display this help and exit
--version
... |
What does the command `whoami` do? | whoami - print effective user name |
How is the `whoami` used? | whoami [OPTION]... |
What is the detailed desciption of the `whoami`? | 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 |
What does the command `truncate` do? | truncate - shrink or extend the size of a file to the specified size |
How is the `truncate` used? | truncate OPTION... FILE... |
What is the detailed desciption of the `truncate`? | Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and
the sparse extended part (hole) reads as zero bytes.
Mandatory argu... |
What does the command `install` do? | install - copy files and set attributes |
How is the `install` used? | install [OPTION]... [-T] SOURCE DEST
install [OPTION]... SOURCE... DIRECTORY
install [OPTION]... -t DIRECTORY SOURCE...
install [OPTION]... -d DIRECTORY... |
What is the detailed desciption of the `install`? | This install program copies files (often just compiled) into destination locations you choose. If you want to
download and install a ready-to-use package on a GNU/Linux system, you should instead be using a package manager
like yum(1) or apt-get(1).
In the first three forms, copy SOURCE to DEST... |
What does the command `nl` do? | nl - number lines of files |
How is the `nl` used? | nl [OPTION]... [FILE]... |
What is the detailed desciption of the `nl`? | Write each FILE to standard output, with line numbers added.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-b, --body-numbering=STYLE
use STYLE for numbering body lines
-d, --section-delimiter=... |
What does the command `echo` do? | echo - display a line of text |
How is the `echo` used? | echo [SHORT-OPTION]... [STRING]...
echo LONG-OPTION |
What is the detailed desciption of the `echo`? | Echo the STRING(s) to standard output.
-n do not output the trailing newline
-e enable interpretation of backslash escapes
-E disable interpretation of backslash escapes (default)
--help display this help and exit
--version
output version information and... |
What does the command `chroot` do? | chroot - run command or interactive shell with special root directory |
How is the `chroot` used? | chroot [OPTION] NEWROOT [COMMAND [ARG]...]
chroot OPTION |
What is the detailed desciption of the `chroot`? | Run COMMAND with root directory set to NEWROOT.
--groups=G_LIST
specify supplementary groups as g1,g2,..,gN
--userspec=USER:GROUP
specify user and group (ID or name) to use
--skip-chdir
do not change working directory to '/'
--help display this h... |
What does the command `comm` do? | comm - compare two sorted files line by line |
How is the `comm` used? | comm [OPTION]... FILE1 FILE2 |
What is the detailed desciption of the `comm`? | Compare sorted files FILE1 and FILE2 line by line.
When FILE1 or FILE2 (not both) is -, read standard input.
With no options, produce three-column output. Column one contains lines unique to FILE1, column two contains
lines unique to FILE2, and column three contains lines common to both files... |
What does the command `pinky` do? | pinky - lightweight finger |
How is the `pinky` used? | pinky [OPTION]... [USER]... |
What is the detailed desciption of the `pinky`? | -l produce long format output for the specified USERs
-b omit the user's home directory and shell in long format
-h omit the user's project file in long format
-p omit the user's plan file in long format
-s do short format output, this is the default
-f om... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.