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Check if a drive with UUID "09b8f1ab-8d4b-4c5f-b395-40be09c090b0" is mounted | mount | grep $ |
Search the files in the current directory tree that are named "string to be searched" for "text" | find . -name "string to be searched" -exec grep "text" "{}" \; |
Find and print the names of all files found in the current directory and all of its sub-directories | find . -print |
display all the files in the current directory and do not search in the sub directories | find . -maxdepth 0 -print |
Find all *.txt files/directories under current directory | find -name '*.txt' |
Print the hexadecimal bytes and printable characters of "Hello world" | echo Hello world | od -t x1 -t c |
Find empty regular files in /dir and its subdirectories | find /dir -type f -size 0 -print |
search for the text file "file.txt" and display its parent directory | cd /nfs/office/ && find . -name 'file.txt' | sed -r 's|(\./?).*|\1|' |
Compress all .txt files in the current directory tree to archive "txt.zip" | find . -name '*.txt' | xargs zip -9 txt.zip |
Find all files/directories under $1 which have at least execute permission for their owner and set execute permission for group for these files/directories | find $1 -perm -u+x -exec chmod g+x {} \; |
display all the files in the current folder excluding those which are in the path of ".git" | find . ! -path "*.git*" -type f -print |
Search for regular files of the grooup 'users' in the file system | find / -type f -group users |
Find all regular files in /usr/bin accessed more than 20 days ago | find /usr/bin -type f -atime +20 |
display all the files in the current folder | find . | awk '{ print "FILE:" $0 }' |
Format the time string $timestamp according to the format string "%Y-%m-%d %H:%M:%S" and save the output to variable 'CDATE' | CDATE=$( date -d @"$timestamp" +"%Y-%m-%d %H:%M:%S" ) |
find all the files in the folder /work which belong to the user "olivier" | find /work -user olivier -print |
show the disk use of all the regular/normal files in the current folder which are bigger than 50MB | find . -type f -size +50000k | xargs du -sh |
Print the first line of each file under the home directory | find $HOME/. -name *.txt -exec head -n 1 -v {} \; |
Join colon-separated information in 3 files LN.txt PH.txt and AD.txt in a cascade fashion: join LN.txt and PH.txt, then join the result with AD.txt | join -t':' < < | join -t':' - < |
display all the files ending with ".user" or beginning with "admin" or ending with ".user.gz" in /var/adm/logs/morelogs/ and excluding all regular files | find /var/adm/logs/morelogs/* -type f -prune \( -name "admin.*" -o -name "*.user" -o -name "*.user.gz" \) -print |
Search for "ifconfig" in the output of "history" and print 5 lines that precede and follow | history | grep ifconfig -A5 -B5 |
A no-op on filename with sed | sed -i "s/\\\\\n//g" filename |
find all the files in the folder /usr/bin which have been modified in the last 10 days | find /usr/bin -type f -mtime -10 |
Print a space separated list of numbers from 1 to 10 with no trailing new line | seq 10 | xargs echo -n |
Take a file path from standard input and remove it. | xargs -I '{}' rm '{}' |
Show ls's detailed output for all files named "something" | find . -name something -exec ls -l {} \; |
Change directory to the current user's home directory | cd /home/`whoami` |
find regular files under the current directory, whose name ends in .mbox and rename each file, to the same name without .mbox at the end | find . -type f -wholename \*.mbox | sed 's/\\.mbox/mv "\1.mbox" "\1"/' | sh |
Find files/directories that have no owner or group under /path | find /path -nouser -or -nogroup |
Get the disk space used by all *.txt files/directories under /path directory | find /path -iname '*.txt' | perl -lane '$sum += -s $_; END {print $sum}' |
Copy all files in current directory that do not match */not-from-here/* in their paths to /dest | find . -type f -not -path '*/not-from-here/*' -exec cp '{}' '/dest/{}' \; |
Remove the last 3 characters from 987654321, keeping only 987654 | echo 987654321 | rev | cut -c 4- | rev |
Unzip all ".gz" files in the current directory tree excluding files containing "dvportgroups", "nsanity", "vcsupport", "viclient", and "vsantraces" | find . -name '*.gz' ! -name '*dvportgroups*' ! -name '*nsanity*' ! -name '*vcsupport*' ! -name '*viclient*' ! -name 'vsantraces*' -exec gunzip -vf {} \; |
display the number of lines in all the header files in the current folder | find . -name "*.h" -print | xargs wc -l |
List all files in the current directory tree that were modified 60 minutes ago | find . -mmin 60 | xargs '-rd\n' ls -l |
Find all *.php files under current directory and change their permission to 640 | chmod 640 $(find . -name *.php) |
Move all files in "/path/subfolder" to "/path" without clobbering any destination files | find /path/subfolder -maxdepth 1 -type f -name '*' -exec mv -n {} /path \; |
Set variable GZIP to the full path of command "gzip" | GZIP="$(which gzip)" |
Get the total sizes of all files under current directory | find path -type f -printf '%s\n' | awk '{sum += $1} END {print sum}' |
Find every directory under "0001" and make new directories replacing "0001" with "0002" at the beginning of their names. | find 0001 -type d | sed 's/^0001/0002/g' | xargs mkdir |
Returns the single most recent file in a directory | ls -t | head -n1 |
Archive "./htmlguide" to "~/src/" with resolved symbolic links and delete any extraneous files from "~/src/" not found in "./htmlguide" | rsync -av --copy-dirlinks --delete ../htmlguide ~/src/ |
Recursively changes group ownership of everything within '/git/our_repos' to 'shared_group'. | chgrp -R shared_group /git/our_repos |
Display users who are currently logged in | finger | sed 's/^\ *\ *pts[^A-Z]*\([^.*/\2\t\t\3/' |
Run script $2 on remote host $1 using interpreter $INTERPRETER with pseudo-terminal allocation | cat $2 | grep -v "#" | ssh -t $1 $INTERPRETER |
Print an octal dump of "file" with named characters, no addresses, and no suppressed duplicate lines with sections starting with "esc", "fs", "gs", or "us" | od -a -An -v file | perl -0777ne 's/\n//g,print "$_\n " for /?(?:.)*/gs' |
Recursively change owner to "$1" and group to "httpd" of all files in the current directory | chown -R $1:httpd * |
Create a ssh key with no passphrase and store it in "outfile". | ssh-keygen -f outfile -N '' |
Execute the first instance of "parallel" found in the PATH, passing it all parameters received by the script/function | `which parallel` "$@" |
Gets IP address of ${NET_IF} network interface. | NET_IP=`ifconfig ${NET_IF} | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1'` |
Display non-hidden files in the current directory with the given output format | find . -maxdepth 1 -name '[!.]*' -printf 'Name: %16f Size: %6s\n' |
Changes group ownership of 'myprog' to 'groupb'. | chgrp groupb myprog |
Find all the files in file system which are accessed 50 days back | find / -atime 50 |
Go to directory named "~" (not home directory) | cd "~" |
Perform a dry run to recursively copy "test/a" to "test/dest" excluding "test/a/b/c/d" | rsync -nvraL test/a test/dest --exclude=a/b/c/d |
Gives the primary group of $USERNAME. | groups $USERNAME | cut -d\ -f 1 |
Recursively list all files on smbfs mounts | mount -v | grep smbfs | awk '{print $3}' | xargs ls -lsR |
Find directories starting from /TBD that were modified more than 1 day ago | find /TBD -mtime +1 -type d |
See the word count of every *.txt file in the home directory | find ~/ -name '*.txt' -print0 | xargs -0 wc -w |
Create a symbolc link in the current directory to "target" | ln -s target |
Gets MAC address of eth0 network interface. | ifconfig eth0 | grep -Eoi [:0-9A-F:]{2}\{5} |
Convert standard input into a dump of octal bytes without the first 8 bytes of address and count the unique results | od | cut -b 8- | xargs -n 1 | sort | uniq | wc -l |
Find all *.txt files under current directory and copy them to ./tmp | find . -type f -name '*.txt' | sed 's/'"'"'/\'"'"'/g' | sed 's/.*/"&"/' | xargs -I{} cp -v {} ./tmp/ |
Write "error" to standard output | echo "error" | tee |
Prints Kb size of all top-level files and folders in a current folder in descending order in human readable format. | du -ksh * | sort -n -r |
Find all *.foo files under current directory and print their contents | cat `find . -name '*.foo' -print` |
Find files that are writable by the user, the group, or both under the plsql directory | find plsql -type f -perm /220 -exec ls -l {} \; 2>/dev/null |
find all files in the current folder that have a single letter in their name and have not been modified today | find . -name \? -mtime +0 |
Find all files under 'dir' directory with white space safety in their paths and print their md5 sums into file.txt | find dir -type f -print0 | xargs -0 md5sum >> file.txt |
find the path of a specfic video file in the current directory | find ./ -name "foo.mp4" -printf "%h\n" |
Split the sorted and unique lines in files "emails_*.txt" into files with at most 200 lines each with numeric suffixes of length 4 | sort --unique emails_*.txt | split --numeric-suffixes --lines=200 --suffix-length=4 --verbose |
Search for files that were accessed less than 5 days ago. | find -atime -5 |
Join columns in "file1" and "file2" if their first field matches and format the output as a table | awk 'NR==FNR{m[$1]=$2" "$3; next} {print $0, m[$1]}' file2 file1 | column -t |
Check if "$file" contains DOS line endings | od -t x2 -N 1000 $file | cut -c8- | egrep -m1 -q ' 0d| 0d|0d$' |
Find all directories under current directory and change their permission to 500 | find . -type d -exec chmod 500 {} \; |
Removes all files but $1 newest ones from current folder. | ls -tp | grep -v '/' | tail -n +"$1" | xargs -I {} rm -- {} |
Search in the current directory and all sub-directories except ./D and any further sub-directories also named D for the file named hi.dat | $ find . \( -name D -prune \) -o -name hi.dat |
display the contents of all the files ending with ".fq" and perform a control check on this raw sequence of data and display the output to the screen | find . -name "*.fq" -exec cat '{}' ';' | fastqc /dev/stdin |
Find the files in the current directory that match pattern '*.JUKEBOX.*.txt' and move them to folder ./JUKEBOX | find . -name '*.JUKEBOX.*.txt' -maxdepth 1 -print0 | xargs -0 -IFILE mv FILE ./JUKEBOX |
Search for .bam files anywhere in the current directory recursively | find . -name "*.bam" |
find all the files in the current folder which are bigger than 10MB and less than 50MB | find . -size +10M -size -50M -print |
Search the CSS files found in the current directory tree for string "foo" | find . -name \*.css -print0 | xargs -0 grep -nH foo |
Decompress 'file.gz' | gzip -d file.gz |
find all js files under the build direcotry except build/external and build/log directory. | find build -not \( -path build/external -prune \) -not \( -path build/blog -prune \) -name \*.js |
Display the differences between "file1.cf" and "file2.cf" side-by-side with a width of 150 characters | diff -y -W 150 file1.cf file2.cf |
Find only number of hard link & name of files from long list | find -type f -iname "*.txt" -exec ls -lrt {} \;|awk -F' ' '{print $1 $2 $9}' |
Find all user files larger than 5MB | find / -size +5000000c 2> /dev/null |
Mount the directory "/etc" on "/tmp/sarnold/mount_point/" | mount -obind /etc /tmp/sarnold/mount_point/ |
create an archive using 7zhelper.sh as a compress program | tar -I 7zhelper.sh -cf OUTPUT_FILE.tar.7z paths_to_archive |
Display all lines containing PROBES in the current kernel's compile-time config file. | grep PROBES /boot/config-$ |
Reversibly sorts content of the '${TMP}/${SCRIPT_NAME}.pid' file, comparing human readable numbers in file strings. | cat ${TMP}/${SCRIPT_NAME}.pid|sort -rh; |
Delete files in /var/tmp/stuff and below that have not been modified in over 90 days | find /var/tmp/stuff -mtime +90 -exec /bin/rm {} \+ |
Find all files under current directory and write the paths without the leading ./ in the file outputfile | find . -type f -printf '%P\n' > outputfile |
Search for first match of the regex 're' in all *.coffee files under current directory | find . -name \*.coffee -exec awk '/re/ {print;exit}' {} \; |
Find files with a question mark in their names | find . -name \*\\?\* |
Get directory listing of URL $1 and save them to variable 'header' by deleting '\r' characters | header="$" |
show all files in /usr/tom and display only files ending with ".pl" or ".pm" | find /usr/tom | egrep '*.pl| *.pm' |
Interpret backslash sequences and delete whitespace characters in variable $FOO and save the result to variable 'FOO_NO_WHITESPACE' | FOO_NO_WHITESPACE="$(echo -e "${FOO}" | tr -d '[[:space:]]')" |
Search the .log files in the current directory tree for string "The SAS System" | find `pwd` -name "*.log" -exec grep "The SAS System" {} \; |
List all files in the /hometest directory tree whose names are "Trash", and their sizes | find /hometest -name Trash -exec ls -s {} \; |
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