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run command "${OBJECTDB_HOME}/bin/objectdb.sh start" $JAVA_USER" as user $JAVA_USER | su --session-command="${OBJECTDB_HOME}/bin/objectdb.sh start" $JAVA_USER |
find for a word in all the regular files in the current directory | find . -type f -exec grep -li '/bin/ksh' {} \; |
Move all files and directories in the current directory to "/foo" | mv `ls` /foo |
Search the current directory recursively for regular files last accessed less than 2 minutes ago | find . type -f -amin -2 |
Find all 755 permission regular files under current directory tree | find . -type f -perm 755 |
Find all files in the current directory tree and count them | find | wc -l |
Tmux configuration to enable mouse support within tmux | set -g mouse on |
Search /etc for files modified within the last 10 minutes | find /etc -type f -mmin -10 |
Decompress and extract 'libxml2-sources-2.7.7.tar.gz' | gzip -dc libxml2-sources-2.7.7.tar.gz | tar xvf - |
Find files named 'core' in or below the directory /tmp and delete them | find /tmp -depth -name core -type f -delete |
Find all *.dbf files/directories in entire file system | find / -name "*.dbf" |
Find regular files named "expression -and expression" under and below /dir/to/search/ | find /dir/to/search/ -type f -name 'expression -and expression' -print |
Find directories in the current directory tree whose names are 33 characters in length | find . -type d -name "?????????????????????????????????" |
Finds strings with dot-separated sequence of numbers, and prints part of that sequence between the first and second dot. | echo "$f" | grep -Eo '[0-9]+[.]+[0-9]+[.]?[0-9]?' | cut -d. -f2 |
Make 3 directories named "$HOME/Labs/lab4a/folder" followed by a 3 width zero padded number from 1 to 3 | mkdir $ |
Print output of "qstat" with full job names and format as a table | qstat -xml | tr '\n' ' ' | sed 's#<job_list[^>]*>#\n#g' \ | sed 's#<[^>]*>##g' | grep " " | column -t |
Print list of bash command aliases. | alias -p | cut -d= -f1 | cut -d' ' -f2 |
Find files named core in or below the directory /tmp and delete them. Note that this will work incorrectly if there are any filenames containing newlines, single or double quotes, or spaces. | find /tmp -name core -type f -print | xargs /bin/rm -f |
Delete all files with ' .o' extension in the entire filesystem | find project / src / -name "* .o" -exec rm -f {} \; |
Find all read-only files | find / -perm /u=r |
Merge lines from files "file1", "file2", "file3", "file4", "file5", replace "\t" with " \t", and format the "\t" delimited result as a table | paste file{1,2,3,4} | sed -e 's/\t/ \t/g' | column -t -s$'\t' |
find all the files in the file system which have been accessed in the last 1 day | find / -atime -1 |
Calculate the md5 sum of all files in "/your/dir" including content and filenames and following symbolic links | grep -aR -e . /your/dir | md5sum | cut -c-32 |
find all the java script files in a folder and give them as input to a jar | find ./js/ -type f -name "*.js" -exec java -jar compiler.jar --compilation_level SIMPLE_OPTIMIZATIONS --js '{}' --js_output_file '{}'.compiled \; |
display all the files in the folder /etc /srv excluding those that are present in the path of ./srv/tftp/pxelinux.cfg* and /etc/mtab | find /etc /srv \! -path "./srv/tftp/pxelinux.cfg*" -a \! -name /etc/mtab |
display long list of all the files in the folder /home/peter which belong to no user and change the owner,group of all these files to "peter","peter" | find /home/peter -nouser -exec ls -l {} \; -ok chown peter.peter {} \; |
display all the files in the current folder in a single line separated by null command | sudo find . -print0 |
Make a new directory "new-dir" in every directory in the current directory tree | find . -type d | xargs -I "{x}" mkdir "{x}"/new-dir |
Change to directory 'foo' and print to terminal all received on standard input | cd foo | cat |
find files which do not have all permissions to all the users in the current directory | find . -type f ! -perm 777 | head |
Find all *.jpg files/directories under current directory | find . -name '*.jpg' |
Find all *.gz files under asia and emea directory and print their names and line counts to file_count.txt | for file in $; do echo -n $; gunzip -c $file |wc -l; done >> file_count.txt |
Find all files/directories under $TARGET_DIR directory tree matching the posix extended regular expression \".*/$now.*\" and save the output in file $FILE_LIST | find $TARGET_DIR -regextype posix-extended -regex \".*/$now.*\" -fprint $FILE_LIST |
search for perl files in the folder /users/tom | find /users/tom -name "*.pl" |
Search the current directory tree for all .java files newer than the file build.xml | find . -name '*.java' -newer build.xml -print |
Request IP address of 'myip.opendns.com' from name server 'resolver1.opendns.com' | dig +short myip.opendns.com @resolver1.opendns.com |
Find all regular files that reside in the current directory tree and were last modified more than 4 days ago | find . -type f -mtime +4 |
Update 'openssl' package to '2013.09' version. | sudo yum --releasever=2013.09 update openssl |
Find all *shp* directories under current directory and move all regular files inside those directories to ../shp_all/ | mv $(find $ -type f) ../shp_all/ |
Recursively changes group ownership of everything within a current directory to 'repogroup'. | chgrp -R repogroup . |
find all javascript files under the current folder | find . -name '*.js' |
Find all files/directories named $something under current directory | find -name "$something" |
Resolve symbolic link of file "FILE" even if the file does not exist | readlink -m FILE |
Find files owned by nonexistent groups | find / -nogroup -print |
Add read and execute permission to every directory under the current directory | find . -type d -exec chmod +rx {} \; |
Display all files in the folder home which are owned by the group test. | find /home -group test |
Count the number of equal lines in sorted files "ignore.txt" and "input.txt" | comm -12 ignore.txt input.txt | wc -l |
Remove all regular files with extensions php, css, ini, txt from directory tree /old/WordPress/ | find /old/WordPress/ -type f -regex ".*\.\" -exec rm {} \; |
print lines from last match of ^Statistics until end of file | tac INPUTFILE | sed '/^Statistics |/q' | tac |
Print "huge-file.log" starting at line 1000001 | tail -n +1000001 huge-file.log |
Recursively removes all files in a 'path' folder but 'EXPR' files. | find [path] -type f -not -name 'EXPR' | xargs rm |
Archive "/path/to/copy" on host "remote" as user "user" to "/local/path" via ssh on port "$portNumber" | rsync -avz -e "ssh -p $portNumber" [email protected]:/path/to/copy /local/path |
Remove all "core" files that were last changed more than 4 days ago from the current directory tree | find . -name core -ctime +4 -exec /bin/rm -f {} \; |
find all files in the file system which belong to the user pat and having the word "filename" in their name. | find / -user pat -iname "filename" |
Print unique lines of "a" and "b" | comm -3 a b |
Print 1000 astarisk | head -c 1000 /dev/zero | tr '\0' '*' |
switch to user username | su username |
Set up SSH connection forwarding in the background with no terminal or command execution from localhost port 8888 to "proxyhost" port 8888 and a reverse connection from "officefirewall" port 22222 to "localhost" port 22 | ssh -fNT -L8888:proxyhost:8888 -R22222:localhost:22 officefirewall |
searching for all files with the extension mp3 | find / -name *.mp3 |
Recursively finds and compresses all files in a current folder with 4 parallel processes. | find . -type f -print0 | xargs -0 -n1 -P4 bzip2 |
Print a line of 100 random characters either "." or " " | cat /dev/urandom | tr -dc '. ' | fold -w 100 | head -1 |
Find all files/directories named 'my.txt' in the entire filesystem | find / -name "my.txt" |
Find regular files in the current directory tree that have all executable bits set | find -L . -type f -perm -a=x |
Find directories in the current directory tree that were modified within the last 24 hours and move them to /path/to/target-dir | find . -type d -mtime -0 -print0 | xargs -0 mv -t /path/to/target-dir |
Sort ":" delimited lines in "test.txt" by the first and third field preserving only unique lines | sort -u -t : -k 1,1 -k 3,3 test.txt |
Show version information of the find utility | find -version |
Prints long recursive listing of all content of a root folder, appending output to 'output.file'. | ls -lR / | tee -a output.file |
find all the files ending with ".mkv" in a folder and send them as an argument to a shell script | find /volume1/uploads -name "*.mkv" -exec /tmp/rename.sh \{\} \; |
list all files under the current directory, writing the output to the file files_and_folders, suppressing all error messages. | find . 2>/dev/null > files_and_folders |
Forcibly removes all files like '*.bak' and '*~' | rm -f *.bak *~ |
find case-insensitive StringBuffer in all *.java files | find . -type f -name "*.java" -exec grep -il string {} \; |
Replace all occurrences of 'previousword' with 'newword' in all regular files with '.cpp' extension under '/myprojects' directory tree and modify them in-place | find /myprojects -type f -name *.cpp -print0 | xargs -0 sed -i 's/previousword/newword/g' |
Print a line of 3 '%' characters | seq -s % 4|tr -d '[:digit:]' |
Find all directories under /home/username/public_html/themes and set their permission to 750 | find /home/username/public_html/themes -type d -exec chmod 750 {} + |
Count the number of differing lines in "file1" and "file2" | diff file1 file2 | grep ^[\>\<] | wc -l |
Find all *text files/directories under current directory | find -name "*text" |
Create a symbolic link named "$HOME/bin/" to "$HOME/downloads/fnord" | ln -s $HOME/downloads/fnord $HOME/bin/ |
Create a symbolic link named "$SYMLINK" to "$ACTUAL_DIR" | ln -s "$ACTUAL_DIR" "$SYMLINK" |
Find all *.jpg files in Cam2/2013* paths and send the contents to a ffmpeg command to create a video file | find Cam2/2013* -name "*.jpg" -print0 | xargs -0 cat | ffmpeg -f image2pipe -framerate 30 -vcodec mjpeg -i - -vcodec libx264 -profile:v baseline -level 3.0 -movflags +faststart -crf 19 -pix_fmt yuv420p -r 30 "Cam2-2013-30fps-19crf.mp4" |
Find all files/directories which have been modified from the start of the day in directories/files taken from the glob pattern '/tmp/test/*' | find /tmp/test/* -daystart -mtime -0 |
Find and remove multiple files such as *.mp3 or *.txt under current directory | find . -type f -name "*.txt" -exec rm -f {} \; |
Find the most recently changed files in a subtree | find . -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort |
Copies all files like '*.txt' under the current directory to the './tmp/' directory. | find . -type f -name '*.txt' | sed 's/'"'"'/\'"'"'/g' | sed 's/.*/"&"/' | xargs -I{} cp -v {} ./tmp/ |
count the total number of lines that are present in all the normal/regular files | find . -type f -exec wc -l {} \; | awk '{total += $1} END{print total}' |
Format tab delimited file "list-of-entries.txt" as a table | column -t -s $'\t' list-of-entries.txt |
Replace the spaces after line number in the output of history with ".." | history | sed 's/^\ */\1../' |
Display the contents of 'your_file' wrapping lines to maximum 80 characters, and waiting for user interaction after each page. | fold -80 your_file | more |
find all files that names are dir-name-here | find / -name "dir-name-here" |
Print each logged in user's full name | finger | awk 'NR>1{print $2,$3}' |
Get domain "$domain" IP address | dig +short "$domain" |
Find directories owned by user news with permissions 775 | find / -user news -type d -perm 775 -print |
Recursively copy "emptydir" to "destination/newdir" | rsync --recursive emptydir/ destination/newdir |
display all regular files in current folder excluding search in the directories that are ending with "git,svn" | find . \( -type d -regex '^.*/\.\$' -prune -false \) -o -type f -print0 |
Delete all .svn subdirectories under current directory | rm -rf `find . -type d -name ".svn"` |
Find out all files owned by user vivek | find / -user vivek |
display all the regular/normal files in the folder "/home/user/demo" which have the permission 777. | find /home/user/demo -type f -perm 777 -print |
Removes everything from current folder but '*ddl*' and '*docs*' files. | ls -1|grep -v -e ddl -e docs| xargs rm -rf |
Remove recursively Emacs backup files in the current directory | find . -name '*~' -print0 | xargs -0 rm |
Extract protocol part from URL. | echo "$url" | cut -d':' -f1 |
Recursively finds files like '*.php' or '*.phtml' in folder /project/directory ignoring case differences, filters out files with any cased pattern '/some/directory' in path, and processes found files with xgettext tool. | find /project/directory -iname '*.php' -or -iname '*.phtml' | grep -iv '/some/directory' | xargs xgettext |
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