nl_command
stringlengths 14
387
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532
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|---|---|
Find executable regular files in the current directory tree | find . -type f -exec test -x {} \; -print |
search for all the symbolic links in a folder and display all the broken/non-existent links | find /target/dir -type l ! -exec test -e {} \; -print |
Send one ping request to host whose name or IP address is specified by variable "remote_machine". | ping -c 1 $remote_machine |
Find files in the current directory tree whose content was changed within the last 60 minutes | find . -mmin -60 |
Sets 'globstar' shell option. | shopt -s globstar |
split file /etc/gconf/schemas/gnome-terminal.schemas into pieces per 1000000 lines | split -n 1000000 /etc/gconf/schemas/gnome-terminal.schemas |
Find all .zip files in the current directory tree and unzip them deleting the archives on success | find . -depth -name '*.zip' -exec /usr/bin/unzip -n {} \; -exec rm {} \; |
Find all PHP files in the current directory recursively and search them for string "$test" with 8 simultaneous processes | find . -name \*.php -type f -print0 | xargs -0 -n1 -P8 grep -Hn '$test' |
Save the md5 sum hash of "${my_iso_file}" to variable "md5" | md5=`md5sum ${my_iso_file} | awk '{ print $1 }'` |
Archive the directory structure under current directory into directory-structure.tar | find . -type d -print0 | tar cf directory-structure.tar --null --files-from - --no-recursion |
Search the entire file system for any file that is writable by other. | find / – perm -0002 |
Recursively removes all files and folders that match pattern '/usr/local/{lib/node{,/.npm,_modules},bin,share/man}/npm*' | rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/npm* |
Use the uncompressed contents of "data.gz" as input to "./complicated-perl-script-that-reads-stdin" and print a status | pv data.gz | gunzip -c | ./complicated-perl-script-that-reads-stdin |
search all the files in the current folder and assign them to a variable | files=`find .` |
find all files that are readable and writable by their owner | find . -perm -600 -print |
display all normal/regular files or directories in the folder "$ORIG_DIR" | find "$ORIG_DIR" -name "*" -type d -o -name "*" -type f |
Search the home directory tree for files owned by sam | find /home -user sam |
Archive all filepattern-*2009* files/directories under data/ into 2009.tar | find data/ -name filepattern-*2009* -exec tar uf 2009.tar {} ; |
Print the first line and lines with "f" as the third "," separated field in "input" and format the result as a "," delimited table | awk -F, '{ if (NR == 1)print}{if($3 == "f")print}' input | column -t -s, |
display a long listing of the files in current folder which have been modified in the last 60 minutes | find . -mmin -60 |xargs ls -l |
Print last 10 commands in history | history 10 |
Make directory named in variable "archive" with ".tar*" stripped from the end | mkdir ${archive%.tar*} |
Find symbolic links under /etc/ | find /etc -type l |
Creates temporary folder in a TMPDIR folder or /tmp folder if TMPDIR doesn`t defined, with folder name like current shell name and 10-letter suffix, and saves created path in 'mydir' variable. | mydir=$(mktemp -d "${TMPDIR:-/tmp/}$(basename $0).XXXXXXXXXXXX") |
Archive all ".txt" files in the current directory to "/path/to/dest" keeping partially transferred files | rsync -aP --include=*/ --include=*.txt --exclude=* . /path/to/dest |
Find all fonts that belong to the user 'warwick' | find /usr/local/fonts -user warwick |
Find .txt files on the system whose size is greater than 12000 bytes | find / -name "*.txt" -size +12000c |
find all txt files under the current folder except ./directory folder | find -name "*.js" -not -path "./directory/*" |
List all files under the current working directory tree | find $/ -type f |
Find all xml files under current directory and archive them to .bz2 archives | for i in `find . | grep ".xml$"`; do bzip2 $i&; done |
Recursively copy all ".txt" files to "[email protected]:/tmp/newdir/" | rsync -rvv *.txt [email protected]:/tmp/newdir/ |
find case-insentive example.com file, omit ./beta path | find ./ -path ./beta/* -prune -o -iname example.com -print |
Find files/directories writable by group and others under the /path directory | find /path -perm -go+w |
Find regular files named "regex" under and below /dir/to/search/ | find /dir/to/search/ -type f -name 'regex' -print |
Prints process tree of the current process with parent processes. | pstree -s $$ |
Find files not matching the patterns 'Image*-70x70*' and 'Image*-100x100*' in their names under Folder1 and copy them to Folder2 | find Folder1 \ | xargs -i% cp -p % Folder2 |
Create a tar archive of files from directory tree "data" | find data/ -print0 | tar --null -T - --create -f archive.tar |
find all html or cgi files in current folder | find ./ -type f -iregex ".*\.html$" -or -iregex ".*\.cgi$" |
Recursively finds all files with any cased text "Text" in a current folder, and precedes found string with its number in file. | grep -inr "Text" folder/to/be/searched/ |
Find all directories in 1 level down the /home directory that have two consecutive vowels in their names and count them | find /home -mindepth 1 -maxdepth 1 -type d -name '*[aeiou][aeiou]*' -printf '*' | wc -c |
Find all files/directories which have been modified within the last day in the drectories/files taken from the glob pattern '/tmp/test/*' | find /tmp/test/* -mtime -1 |
Find all regular files under ${path} without following symlinks | find ${path} -P -type f |
Recursively change the owner of all "*.txt" files under "/mydir" to "root" | find /mydir -type f -name "*.txt" -execdir chown root {} ';' |
Find .rmv files in the current directory recursively | find . -name *.rmv |
Create intermediate directories "b and "c" as required and directory "c" | mkdir -p a/b/c |
find all files in the current folder that are modified exactly 1 minute ago | find -mmin 1 -print |
Search for the pattern '^use strict' in all *.pl files under current directory | find . -name '*.pl' | xargs grep -L '^use strict' |
Recursively finds all files and prints all strings with 'text-to-find-here' from that files. | find / -type f | xargs grep 'text-to-find-here' |
Read two bytes from "/dev/urandom" and print them as an unsigned integer | od -A n -N 2 -t u2 /dev/urandom |
Print the content of the file 'file' deleting the last four lines | nl -b a file | sort -k1,1nr | sed '1, 4 d' | sort -k1,1n | sed 's/^ *[0-9]*\t//' |
Filter the cron list of user "user" through "my_wonderful_sed_script" and re-apply the resulting output. | crontab -u user -l | sed "$my_wonderful_sed_script" | crontab -u user - |
Find files that are 0 bytes in size in the current directory and remove them | find . -maxdepth 1 -size 0c -exec rm {} \; |
Remount "/dev/stl12" on "/system" as read only | mount -o ro,remount /dev/stl12 /system |
display a long listing of all regular files in current folder which have been modified in the last 60 minutes | find . -mmin -60 -type f | xargs ls -l |
Delete all files in the TBD directory that were modified more than 1 day ago | find /TBD/* -mtime +1 | xargs rm -rf |
Returns unsuccessful exit code on each found file like '*tests*' within current directory. | find . -name '*tests*' -print -exec false \; |
Delete all files in the current directory. | find . -exec /bin/rm {} \; |
Recursively move "./dir" to "user@host:/path" via ssh on port 2222 compressing data and displaying progress during transmission | rsync -rvz -e 'ssh -p 2222' --progress --remove-sent-files ./dir user@host:/path |
Saves location of file $1 in 'dir' variable. | dir=$ |
display all the regular/normal files in a folder and save errors to a log file | find ./subdirectory -type f 2>>error.log |
Find all regular files under $dir directory tree with name pattern provided by the first positional parameter and show only the $num'th line from each of those files | find $dir -type f -name $1 -exec sed $num'q;d' {} \; |
Print host name without a newline | echo -n `hostname` |
Print the list of files in the current directory tree skipping SVN files | find . -type d -name .svn -prune -o -print |
Print each column in "file" with "-" character removed | fold -w1 file | pr -4t | tr -d '\n\t\- ' | sed '$a\' |
Write "suspend" to standard output and to file "/sys/bus/usb/devices/usb3/power/level" | echo suspend | sudo tee /sys/bus/usb/devices/usb3/power/level |
find all the files in the entire file system whose size is between 50Mb to 100MB | find / -size +50M -size -100M |
delete all the tmp files in the /tmp folder. Print0 is used to display all those files which have newline in their names or files whose name is only spaces. | find /tmp -name "*.tmp" -print0 | xargs -0 rm find /tmp -name "*.tmp" -print0 | xargs -0 rm |
Silently read a single character from standard input into variable "REPLY" without backslash escapes, with a timeout of 5 seconds, and using the prompt $'Press any key or wait 5 seconds to continue...\n' | read -rsp $'Press any key or wait 5 seconds to continue...\n' -n 1 -t 5 |
Find all files under $d directory and set read-write permission for owner and group and no permission for other for those files | find $d -type f -exec chmod ug=rw,o= '{}' \; |
Search the current directory tree for symlinks whose contents match pattern "*sysdep.c" | find . -lname '*sysdep.c' |
find all ".flac" files starting with "cmn-" and search for files having CJK characters using unicodes | find . -name 'cmn-*.flac' -print | grep -P '[\x4e00-\x9fa5]' |
Split "t.txt" into files with at most 30000000 lines each and use a prefix "t" and numeric suffixes of length 2 | split --lines=30000000 --numeric-suffixes --suffix-length=2 t.txt t |
Search all regular files in the current directory tree for "string" | find . -type f -exec grep string {} \; |
Run "command" on server "host" as user "user" | echo "command" | ssh user@host |
Search the current directory tree for files and directories whose names do not end in ".exe" and ".dll" | find . -name \*.exe -o -name \*.dll -o -print |
display all the files in the home folder that have been modified in the last 7*24 hours | find $HOME -mtime -7 |
Calculate the sha1 sum and md5 sum of "foo" | echo foo | tee > > |
Find all *.jpg files and copy them to / | find / -type f -name *.jpg -exec cp {} . \; |
find all the files in current directory of size greater than 2GB. | find . -size +2G |
Find all files/directores under '/usr/local' directory tree that case insensitively contain the word 'blast' in their names | find /usr/local -iname "*blast*" |
find for a filename with multiple patterns in the current folder | find . -name "photo*.jpg" |
Print the type of the current shell | echo $(cat /proc/$$/cmdline) |
find all files that belong to root user | find . -uid 0 -print |
Delete files in /var/tmp/stuff and below that have not been modified in over 90 days | find /var/tmp/stuff -mtime +90 -print0 | xargs -0 /bin/rm |
Archive directory "." to "server2::sharename/B" | rsync -av . server2::sharename/B |
Replace all ' ' with '-' from standard input | tr ' ' '-' |
sort and display the unique lines display the contents of all the files that have been modified in the last 91 days and not in the last 2 days | find . -name "*.txt" -type f -daystart -mtime -91 -mtime +2 | xargs cat | sort | uniq |
split the result of command "ping -c 25 google.com | tee " into pieces per 100000 bytes named as "/home/user/myLogFile.logNNN" | ping -c 25 google.com | tee >(split -d -b 100000 - /home/user/myLogFile.log) |
add read permission to others for the files in the current folder having the name "rc.conf" in their name. | find . -name "*rc.conf" -exec chmod o+r '{}' \; |
Removes trailing and starting newlines from file | tac file | sed -e '/./,$!d' | tac | sed -e '/./,$!d' |
display a long listing of all the log files in the current folder which are bigger than 1MB | find . -size +1000k -name *.log -print0 | xargs -0 ls –lSh |
Locate all *.csv files under the current directory tree separating the file names with zeroes | find . -name "*.csv" -print0 |
find all the files with the name test in the current folder | find . -iname test |
Prints process tree of a current process with parents processes and id numbers. | pstree --show-parents -p $$ | head -n 1 | sed 's/\+.*/\1/' | less |
Prints path to the target of symbolic link 'relative/path/to/file' | dirname `readlink -e relative/path/to/file` |
Copy "src/prog.js" and "images/icon.jpg" to "/tmp/package/" keeping relative path names | rsync -Rv src/prog.js images/icon.jpg /tmp/package/ |
Print the date, then prompt "Hit ENTER or wait ten seconds" with a 10 second timeout, then the date again | date ; read -t 10 -p "Hit ENTER or wait ten seconds" ; echo ; date |
Print all directories under $root appending a : (colon) at the end of each path | find $root -type d -printf '%p:' |
Find all *.txt and *.json files | find . -type f \( -name "*.txt" -o -name "*.json" \) |
Find files named 'fileName.txt' under '/path/to/folder' directory tree ignoring 'ignored_directory' | find /path/to/folder -name fileName.txt -not -path "*/ignored_directory/*" |
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