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Verbosely compresses all files on third and fourth depth level keeping original files in place. | bzip2 -kv */*/*/* |
Count the number of times that a single "-----------\n" separated record contains both "A=2" and "dummy=2" in compressed file "file.gz" | zcat file.gz | awk -v RS="-----------\n" '/A=2[ ,\n]/ && /dummy=2[ ,\n]/{count++} END{print "Final counter value=",count}' |
Unzip every ".gz" file in the current directory | gunzip *.gz |
Find all regular files with the group read permission set in your home directory and below and output detailed information about each file. | find . -perm -g=r -type f -exec ls -l {} \; |
list all files in /home/bozo/projects directory tree that were modified exactly one day ago. | find /home/bozo/projects -mtime 1 |
Creates temporary file and saves path to it in a 'tmpfile' variable. | tmpfile=`mktemp` |
find the file with the name "esxcfg-firewall" in the current folder | find -print | grep esxcfg-firewall |
Page through the information of the system's PHP setup. | less -f < |
Search the entire file hierarchy for files named zsh that exist on ext3 file systems and print out detailed information about the file. | find / -fstype ext3 -name zsh -ls |
Find all files/directories under current directory and print them with newline as the delimiter | find -print | xargs -d'\n' |
Find and delete all hard links in the /home directory to file1 | find /home -xdev -samefile file1 -exec rm {} + |
Run 10 bash processes at most 4 at a time of "echo start N; sleep 3; echo done N" for N ranging from 1 to 10 | seq 10 | xargs -i --max-procs=4 bash -c "echo start {}; sleep 3; echo done {}" |
Search the current directory recursively for regular files last accessed 2 days ago | find . type -f -atime 2 |
find the file with inode $inum under the current directory and delete it | find . -inum $inum -exec rm {} \; |
Make directory "alpha_real" | mkdir alpha_real |
remove all subdirectories named "CVS" under current dir | find . -type d -name CVS -exec rm -r {} \; |
Make a list of regular files from the current directory tree that have more than 1 link and view it with the "less" pager | find . -type f -noleaf -links +1 -printf "%n %i %f\t%h\n" | sort | less |
print number of jobs | n_jobs=$( jobs -p | awk '{print NR}' ) |
list txt files older than 5 days or html files of any age, null separated | find . \( -name '*.txt' -mtime +5 -o -name '*.html' \) -print0 |
Print lines 347340107 through 347340206 in "filename" | tail -n +347340107 filename | head -n 100 |
Search the /home/test directory tree for directories and files called '.ssh' | find /home/test -name '.ssh' |
List all files in the current directory tree that were last modified more than 60 minutes ago | find -mmin +60 |
Print a top 20 histogram of characters used from standard input showing backslash escapes for non-displayables | od -cvAnone -w1 | sort -b | uniq -c | sort -rn | head -n 20 |
Print first field from semicolon-seprated line <line>. | echo "<line>" | cut -d ";" -f 1 |
Enables shell option 'histappend'. | shopt -s histappend |
find all the files in the home folder which have been modified in the last 7 days | find $HOME -mtime -7 |
List environment variables and their values whose name matches '^\w*X\w*' | set | grep -P '^\w*X\w*' |
Write the standard output and error of "someCommand" to the console and "someFile" | someCommand 2>&1 | tee someFile |
ERROR - will overwrite the executable if it's not a symlink. | sudo ln -sf /usr/local/ssl/bin/openssl `which openssl` |
Save a unique list of the currently logged in usernames to variable "line" | line=$ |
list all regular files which path is not dir1 or dir2 | find dir -not \( -path "dir1" -prune \) -not \( -path "dir2" -prune \) -type f |
List the files in "archive.tar.gz" | gzip -l archive.tar.gz |
Create a hard link named "my-hard-link" to "myfile.txt" | ln myfile.txt my-hard-link |
Search for "foo" in every file in the current directory and number the output | grep foo * | nl |
search in current directory downwards all files whose status has changed more then 7 days ago | find . -ctime +7 -print |
Create 256 directories named from '00' to 'ff', each containing 256 subdirectories named '00' to 'ff'. | join -j2 < < | xargs -n256 printf "%02x/%02x\n" | xargs mkdir -p |
Truncate all regular files under the current directory | find . -type f -maxdepth 1 -exec sh -c 'cat /dev/null > {}' \; |
Display kernel release name. | uname -r |
Remove all files with names like "vmware-*.log" from the current directory tree | find . -name vmware-*.log -print0 | xargs -0 rm |
split content of the file inputfile except lines started with "^t:" into pieces per 200 lines | cat inputfile | grep "^t\:" | split -l 200 |
split listing of the current directory into pieces per 500 lines named "outputXYZNNN" | ls | split -l 500 - outputXYZ. |
Find all hidden regular files starting from the current directory | find . -type f -name ".*" |
Installs package group "MYSQL Database Client", answering 'yes' on all questions. | yum -y groupinstall "MYSQL Database Client" |
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 print}{ifprint}' input | column -t -s, |
Copy all files with name pattern $j.sh under '/tmp/2' directory tree to $i directory | find "/tmp/2/" -iname "$j.sh" -exec cp {} "$i" \; |
Find all *.err files under current directory that are larger than 5120 bytes in size | find . -type f -size +10 -name "*.err" |
Find only files under /etc with the size of 100k-150k | find /etc -size +100k -size -150k |
Print the current directory name without full path | echo "$PWD" | sed 's!.*/!!' |
Print the full path of a 'file.txt' file in the current folder. | ls "`pwd`/file.txt" |
Display the 5 largest files in the current directory and its sub-directories. | find . -type f -exec ls -s {} \; | sort -n -r | head -5 |
Report file systems disk usage, elide all entries insignificant to available space, and produce a grand total. | df --total |
Search appended data in "logfile.log" for "something" with a timeout of 3 seconds | tail -f logfile.log | grep --line-buffered "something" | read -t 3 |
Calculate the md5 sum of the contents of "$FILES" | cat $FILES | md5sum |
Find all the files whose name is tecmint.txt and contains both capital and small letters in /home directory | find /home -iname tecmint.txt |
Find all files/directories under current directory tree | find | xargs |
Search all files & directoy from root directory which are greater then 100M and delete them . | find / -size +100M -exec rm -rf {} \; |
display all the files in the current folder which are in the path "./sr*sc" | find . -path './sr*sc' |
Delete all files under user's home directory tree that were accessed more than 365 days after their status was changed | find ~ -used +365 -ok rm '{}' ';' |
Remove all CVS directories in the current directory tree | find . -type d -name CVS -exec rm -r {} \; |
Find all files/directories under /home/baumerf/public_html/ that were modified less than 60 minutes ago excluding error_log files/directories | find /home/baumerf/public_html/ -mmin -60 -not -name error_log |
search for the directory with the name aa in the current folder | find . -type d -name aa |
search for the file, filename.txt in the current folder | find . -name filename.txt |
Force create a symbolic link in "/usr/bin/" for each file matching "$javaUsrLib/jdk1*/bin/*" | sudo ln -f -s $javaUsrLib/jdk1*/bin/* /usr/bin/ |
Get the base filename from variable 'path', similar to using the basename command. | echo "$path" | rev | cut -d"/" -f1 | rev |
Print unique lines in sorted "file1" compared to sorted file "file2" | comm -23 file1 file2 |
Search directory tree $DIR for *.txt files | find $DIR -name "*.txt" -print |
Recursively finds all folders in a current folder that contain files like '.git'. | find . -name '.git' | xargs dirname |
prints first line of $bigfile | head -n1 $bigfile |
Replace the occurrences of "HOGE" with "MOGA" once per each line of the files from the current directory tree, keeping a backup copy of every touched file | find . -type f -print0 | xargs -0 sed -i.bak -e "s/HOGE/MOGA/" |
display a list of all the files in the file system which do not belong to any group and search only in jfs and jfs2 file systems | find / -nogroup \ -ls |
Unzip "file.gz" to standard output and execute in bash with arguments "-n wordpress" | gzip -d --stdout file.gz | bash -s -- "-n wordpress localhost" |
ssh into default vagrant host without running "vagrant ssh" | ssh $ localhost |
Delete all files/directories named test under maximum 2 level down the current directory | find . -maxdepth 2 -name "test" -exec rm -rf {} \; |
Prints only first ten characters of each string of file $file. | cat $file | cut -c 1-10 |
Set variable "finalName" to the second-to-last slash-separated path component of variable "path" | finalName=$(basename -- "$") |
delete what was typed in the command line and run "pwd" when button "\e[24~" | bind '"\e[24~":"\C-k \C-upwd\n"' |
Display what flags mount points are mounted with | mount -l |
Remove files that are less than 1MB in size under current directory | find . -type f -size -1M -exec rm {} + |
Print the current working directory and the base name of "$1" | echo "$(pwd)/$(basename "$1")" |
display list of all the regular/normal files in the home folder which are exactly 6579 bytes | find /home/ -type f -size 6579c -exec ls {} \; |
Make sure the file ".bash_profile" exists in current directory, update its timestamp to current date/time. | touch .bash_profile |
Recursively removes all files and folders like 'FILE-TO-FIND' from current folder. | find . -name "FILE-TO-FIND" -exec rm -rf {} + |
Find all files under directory tree /path/to/dir whose permissions are not 644 | find /path/to/dir ! -perm 0644 |
Find files/directories that have not been modified in the last one day in directories or files taken from the glob pattern '/tmp/test/*' | find /tmp/test/* -daystart -mtime +1 |
find all of the executable files on your computer | find / -executable |
Search the current directory recursively for .sh files whose names begin with "new" | find . -name "new*.sh" |
Erase user's cron jobs and add one cron job to run "script" every minute. | echo "* * * * * script" | crontab - |
Format the time string @133986838 according to the default time format and save it to variable 'VARIABLENAME' | VARIABLENAME=$(date -d @133986838) |
Search the current directory recursively for files with the exact permissions u=rwx,g=rx,o=rx | find . -perm a=rwx,g-w,o-w |
Print all files in the current directory tree as a comma separated list | find . -type f | paste -d, -s |
Recursively change the user and group of all files in "/var/cache/jenkins" to "root" | chown -R root:root /var/cache/jenkins |
Find all files and directories under current directory without crossing over to other partitions | find . -xdev -print0 |
Print second section of data coming from stdin where sections are separated by one or more whitespace. | tr -s ' ' | cut -d ' ' -f 2 |
Archive "/path/to/application.ini" on host "source_host" to current directory. | rsync -avv source_host:path/to/application.ini ./application.ini |
Find all regular files under /home/www and replace every occurrences of 'subdomainA.example.com' with 'subdomainB.example.com' in those files | find /home/www/ -type f | xargs perl -pi -e 's/subdomainA\.example\.com/subdomainB.example.com/g' |
Find .rm files in the /home/me/download/ directory tree and convert them to the MP3 format | find /home/me/download/ -type f -name "*.rm" -exec ffmpeg -i \{} -sameq \{}.mp3 \; -exec rm \{} \; |
Enable history and history expansion within a script | set -o history -o histexpand |
Copy "src/prog.js" and "images/icon.jpg" to "/tmp/package" keeping relative path names | rsync -R src/prog.js images/icon.jpg /tmp/package |
Find all files/directories starting with 'onlyme' in their names under current directory tree in minimum 1 level deep | find . -mindepth 1 -name 'onlyme*' |
Search the current directory tree for files named "accepted_hits.bam" | find . -name "accepted_hits.bam" |
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