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Search only for directories
find -type d
Search PATH for utilities called "rename", display the type of file (script, executable, ...) for each match found.
which -a rename | xargs file -L
Search PATH for utilities called "rename", display the type of file (script, executable, ...) for each match found.
which -a rename | xargs readlink -f | xargs file
Search the path given as the $absolute_dir_path variable for regular files
find "$absolute_dir_path" -type f -print0
search the pattern ^PyErr in all the ".c" files in the folder Lib/
find Lib/ -name '*.c' -print0 | xargs -0 grep ^PyErr
Search recursively through /mydir, outputting only the base (leaf) name of each file, directory, symlink etc. without any containing directories, that is the part following the last slash.
find /mydir | xargs -I{} basename {}
Search the regular files from directory tree 'directory_name' for "word" and print the names of the matched files
find directory_name -type f -print0 | xargs -0 grep -li word
Search the regular files from directory tree 'folder_name' for "your_text"
find folder_name -type f -exec grep your_text {} \;
Search the regular files of the current directory tree for string "stringYouWannaFind", ignoring the case
find ./ -type f -print -exec grep -n -i "stringYouWannaFind" {} \;
Search the regular files of the current directory tree for string "stuff"
find . -type f -exec grep -n "stuff" {} \; -print
Search the regular files of the current directory tree for string "texthere"
find -type f -exec grep -Hn "texthere" {} +
Search the specified group for the given "filename
find / -group users -iname "filename"
Search the specified user for the given "filename"
find / -user pat -iname "filename"
Search the src/ directory recursively for .c and .h files
find src/ -name '*.[ch]'
Search subdirectory `Linux' in the current directory for file `teste.tex'
find -path './Linux/*' -name teste.tex
Search the system for *.rpm files ignoring removable media
find / -xdev -name \*.rpm
Search the system for the file “testfile.txt”
find / -name "testfile.txt"
Search the system for the file 'myfile' ignoring permission denied errors
find . -name myfile |& grep -v 'Permission denied'
Search the system for files and directories owned by user `admin'
find / -user admin -print
Search the system for files named "findcommandexamples.txt", ignoring the case
find / -iname findcommandexamples.txt
Search the system for files whose names begin with letters 'a', 'b', or 'c'
find / -name '[a-c]*'
Search the system for regular files whose names are "filename" ignoring the case
find / -type f -iname "filename"
Search through the /usr directory for all files that begin with the letters Chapter, followed by anything else.
find /usr -name "Chapter*" -type f
searches through the /usr directory for the regular file named 'Chapter1*'
find /usr -name "Chapter*" -type f
searches through the /usr/local directory for files that end with the extension .html
find /usr/local -name "*.html" -type f
Searches through the /usr/local directory for files that end with the extension .html. When these files are found, their permission is changed to mode 644 (rw-r--r--).
find /usr/local -name "*.html" -type f -exec chmod 644 {} \;
search through only the /usr and /home directories for any file named Chapter1.txt
find /usr /home -name Chapter1.txt -type f
searches through the root filesystem ("/") for the file named Chapter1.
find / -name Chapter1 -type f
searches through the root filesystem ("/") for the file named Chapter1.
find / -name Chapter1 -type f -print
searches through the root filesystem ("/") for the file named Chapter1, and prints the location
find / -name Chapter1 -type f
searches through the root filesystem ("/") for the file named Chapter1, and prints the location
find / -name Chapter1 -type f -print
Search user1's home directory tree for *.bin files
find /home/user1 -name \*.bin
search the word "MySearchStr" in all the regular/normal files in the current folder and display the line number and the file name
find . -type f -print0 | xargs -0 -e grep -nH -e MySearchStr
Search the xargstest/ directory recursively for files matching pattern 'file??'
find xargstest/ -name 'file??'
Search the XML files from directories /res/values-en-rUS and /res/xml for string "hovering_msg"
find /res/values-en-rUS /res/xml -iname '*.xml' -print0 | xargs -0 -d '\n' -- grep -i "hovering_msg" --
Search the ~ and `Music' directory trees for .mp3 files
find ~ Music -name '*.mp3'
Search the ~/Books directory recursively for files named "Waldo"
find ~/Books -name Waldo
Search the ~/Books directory recursively for regular files named "Waldo"
find ~/Books -type f -name Waldo
See all pages in section 3.
apropos -s 3 .
See what files are executable by the file's owner and group
find -type f -perm -110
See the word count of every *.txt file in the home directory
find ~/ -name '*.txt' -print0 | xargs -0 wc -w
Select everything selected by * without descending into any directories
find * -maxdepth 0
Send two ping requests to "www.google.com"
ping -c 2 www.google.com
Send 4 ping requests to host "google.comz", displaying only the summary info after the last request completed.
ping -c 4 -q google.comz
Send 5 ping requests to address 12.34.56.78 and print only the last 2 lines of the summary output.
ping -c 5 -q 12.34.56.78 | tail -n 2
Send a single ping request with a TTL of 1 to "192.168.1.1"
ping -c 1 -t 1 192.168.1.1
Send an audible ping to "10.100.3.104"
ping -a 10.100.3.104
Send at most 3 ping requests to "8.8.8.8" with a timeout of 3 seconds on interface "eth9"
ping 8.8.8.8 -I eth9 -c 3 -w 3
Sends current job to the background.
bg
Sends current job to the background.
bg %
Send one ping request to host whose name or IP address is specified by variable "ip", using network interface eth9.
ping ${ip} -I eth9 -c 1
Send one ping request to host whose name or IP address is specified by variable "remote_machine".
ping -c 1 $remote_machine
Send one ping request to host with local address in the 10.0.0.x range, with last number specified by variable "i", waiting 1 second for a reply, and output only lines containing "from" to standard output.
ping -W 1 -c 1 10.0.0.$i | grep 'from' &
Send one ping request to host with local address in the 192.168.1.x range, with last number specified by variable "COUNTER", and output only lines containing "ms" to standard output.
ping -c 1 192.168.1.$COUNTER | grep 'ms'
Send one ping request to local machine.
ping -c 1 127.0.0.1 #ping your adress once
Send Output From Find The Find Command To A File
find / -name *.mp3 -fprint nameoffiletoprintto
Send ping requests to "yourhostname.local"
ping youhostname.local
Send ping requests to hostname specified by variable "c" for 1 second.
ping -w 1 $c
Send reverse requests to get domain name for each address in 'my_ips' list
cat my_ips | xargs -i dig -x {} +short
Send SIGHUP (hangup) signal to nginx master process, causing it to re-read its configuration and restart child processes if necessary.
kill -HUP $( cat /var/run/nginx.pid )
Send SIGKILL signal to process ID 16085, killing it instantly.
kill -9 16085
Send SIGKILL signal to processes ID 18581, 18582, and 18583, killing them instantly.
kill -9 18581 18582 18583
Send SIGTERM signal to first process sent to background by the current shell.
kill %1
Send SIGTERM signal to last process sent to background by the current shell.
kill $!
Send SIGWINCH process to current shell, causing it to update the LINES and COLUMNS variables which describe the size of the screen/window in characters.
kill -s WINCH $$
Send TERM signal to process with id listed in '/var/run/DataBaseSynchronizerClient.pid' file
kill `cat /var/run/DataBaseSynchronizerClient.pid`
Serach for all the files containing grep in man pages
find /usr/share/man/ -regex .*grep*
Serach for all the files starting with grep in man pages
find /usr/share/man/ -regex grep.*
Serach in current directory downwards all files which have not been modified since last 7 days
find . -mtime +7 -print
Serach in root directory all files which have more than 2 links.
find / -links +2 -print
Sets 'extglob' shell option.
shopt -s extglob
Sets 'extglob' shell variable.
shopt -s extglob
Sets 'globstar' shell option.
shopt -s globstar
Set 444 permission to all regular files under current directory
find . -type f -print | xargs chmod 444
Set 644 permission to all regular files under /path
find /path -type f -exec chmod 644 {} +;
set a crontab to create or update the timestamp of "washere1" in the current directory every minute.
echo "* * * * * touch $(pwd)/washere1" | crontab
Set the environment variable "DISPLAY" to the system host name followed by ":0 skype"
DISPLAY=`hostname`:0 skype
Set the environment variable "DISPLAY" to the system host name followed by ":0 skype"
env DISPLAY=`hostname`:0 skype
Set environment variables using assignments are listed in '.env' file and run 'rails' command with defined environment
env $(cat .env | xargs) rails
Set the executable bit for all users on all .sh scripts from directory trees lib, etc, debian
find lib etc debian -name "*.sh" -type f | xargs chmod +x
Set the executable bit for all users on all regular files from directories arch/x86/usr/sbin, arch/x86/usr/X11R6/bin, usr/sbin/
find arch/x86/usr/sbin arch/x86/usr/X11R6/bin usr/sbin/ -type f | xargs chmod a+x
Set file permission to 664 and directory permission to 775 for all files and directories under htdocs
find htdocs -type f -exec chmod 664 {} + -o -type d -exec chmod 775 {} +
Set the group to "username" for all files with GID=1000 in the current directory tree
find -gid 1000 -exec chown -h :username {} \;
Set the host name to "myServersHostname"
hostname myServersHostname
Set the host name to the contents of "/etc/hostname"
hostname $(cat /etc/hostname)
set MyVariable to the value of VARIABLE_NAME
myVariable=$(env | grep VARIABLE_NAME | grep -oe '[^=]*$');
Set permissions for all direcotries under /var/www to 755
find /var/www -type d -print0 | xargs -0 chmod 755
Set permissions for all regular files under /var/www to 755
find /var/www -type f -print0 | xargs -0 chmod 644
Set permissions for directories in `foldername' and its subdirectories to 755
find foldername -type d -exec chmod 755 {} ";"
Set permissions for files in `foldername' and its subdirectories to 644
find foldername -type f -exec chmod 644 {} ";"
Set permissions for files in `foldername' to 777
find foldername -exec chmod a+rwx {} ";"
Set permission of "file" to read only for the owner
chmod 600 file
Set the permissions of all directories inside the current directory tree to ug=rwx,o=
find . -type d -name files -exec chmod ug=rwx,o= '{}' \;
Set permissions of all directories under "/opt/lampp/htdocs" to 711
find /opt/lampp/htdocs -type d -exec chmod 711 {} \;
Set permissions of all directories under "/opt/lampp/htdocs" to 755
find /opt/lampp/htdocs -type d -exec chmod 755 {} \;
Set permissions of all directories under "/path/to/base/dir" to 755
chmod 755 $(find /path/to/base/dir -type d)
Set permission of all files in "img", "js", and "html" to 644
chmod 644 img/* js/* html/*
Set permissions of all files under "/opt/lampp/htdocs" to 644
find /opt/lampp/htdocs -type f -exec chmod 644 {} \;
Set permissions of command "node" to 755
sudo chmod 755 $(which node)
Set permissions to 2770 for all directories in the current directory tree
find . -type d -exec chmod 2770 {} +