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Split "/etc/gconf/schemas/gnome-terminal.schemas" into 1000000 files of about equal size | split -n 1000000 /etc/gconf/schemas/gnome-terminal.schemas |
find the file "httpd.log" in the entire file system | find / -type f -name httpd.log |
search files in the file system excluding those in the paths "10_Recommended" and "/export/repo" | find / -name whatever -not -path "/10_Recommended*" -not -path "/export/repo/*" |
list all the files which have size 0 bytes in some directories | find `gen_root_dirs.sh` -type f -size 0 -ls |
find all regular files in a folder using regular expressions which do not have a specific name pattern and send these files as input to the script.bash script file | find "$DIRECTORY_TO_PROCESS" -type f -iregex ".*\.$FILES_TO_PROCES" ! -name "$find_excludes" -print0 | xargs -0 -I {} bash script.bash {} |
Find all *.html files under current directory and for each file replace the first occurrence of STRING and previous lines with the content of common_header file | find . -type f -name '*.html' -exec sed -i -e '1r common_header' -e '1,/STRING/d' {} \; |
Decompress and extract '/usr/src/redhat/SOURCES/source-one.tar.gz' | gzip -dc /usr/src/redhat/SOURCES/source-one.tar.gz | tar -xvvf - |
Store info about all mounted file systems, printing all sizes in powers of 1000 | a=$ |
Find all Executable files in the file system | find / -perm /a=x |
List all nfs mount points on the system | mount -l | grep 'type nfs' | sed 's/.* on \ .*/\1/' |
display all the directories in the current folder for the files which have not been accessed in the last 48 hours | find . -type d -atime +2 |
Search the file system for regular files whose names are shorter than 25 characters | find / -type f -regextype posix-extended -regex '.*/.{1,24}$' |
Print a sorted list of *.so files in the bla directory tree | find bla -name *.so -print0 | sort -rz |
searches through the root filesystem ("/") for the file named Chapter1. | find / -name Chapter1 -type f -print |
extract 'archive.tar.gz' to /destination | tar xzf archive.tar.gz -C /destination |
display all the directories in the current folder | find . -type d |
Recursively copy all regular files below current directory to directory /tmp on hostname, connecting as ssh user matching current username on local host. | find . -type f -exec scp {} hostname:/tmp/{} \; |
Calculate md5 checksum of $line and save to variable 'md5' | md5=$(echo "$line"|md5sum) |
show all .cpp, .c, .h, .hpp files in the folder ~/src | find ~/src -type f \ -exec echo {} \; |
Change the group of "myfile" to "friends" | chown :friends myfile |
Find all directories under current directory and replace all null delimiters with : in the output then remove the last : | find -type d -print0 | sed -e "y/\d0/:/;s/:$//;" |
find all the files in the entire file system that start with top | find / -name 'top*' |
search for all mp3 files in the folder /home/you which have been accessed exactly 10*24 hours ago | find /home/you -iname "*.mp3" -atime 10 -type -f |
Print IP address of the current host | echo $(/usr/sbin/arp $ | awk -F'[]' '{print $2}') |
Print sorted list of strings from 'ip_addresses' file, with number of occurrences of each string. | sort ip_addresses | uniq -c |
find files in home directory that names are game | find ~ -name game |
Rename "blah2" to "blah2-new" | mv blah2 blah2-new |
Delete all hidden files under $some_directory | find "$some_directory" -type f -name '.*' -delete |
Display "/tmp/file" as a table of width 30 with columns filled before rows | column -x -c 30 /tmp/file |
Find all files larger than 20000k | find / -type f -size +20000k |
Format "$line" as a table | echo "$line" | column -t |
Recursively change owner and group to "$JBOSS_AS_USER" of "$JBOSS_AS_DIR" | chown -R $JBOSS_AS_USER:$JBOSS_AS_USER $JBOSS_AS_DIR |
Find all directories under current directory | find -type d |
Find all files/directories with user id 120 under current directory tree | find . -uid 120 -print |
Remove all files whose names end with "~" in the /home/peter directory tree | find /home/peter -name *~ |xargs rm |
Search regular files from the /path/to/dir directory tree for lines that contain "_START" and are enclosed in lines "@GROUP" and "@END_GROUP" | find /path/to/dir -type f -exec sed '/@GROUP/,/@END_GROUP/!d' {} + | grep '_START' |
Take first text field from file 'file.txt' as a domain name and get short A record for this one. | cut -d' ' -f1 file.txt | xargs dig +short |
Find all "G*.html" files modified more than 7 days ago in the current directory tree | find . -mtime +7 -name "G*.html" |
Print lines in the sorted contents of "a.txt" that are not in the sorted contents of "b.txt" | comm -23 <(sort a.txt) <(sort b.txt) |
Read a line from standard input with prompt "Continue ?" and save response in variable "choice" | read -p "Continue ?" choice |
Find all files/directores that are newer than /etc/motd and conain the string 'top' at the beginning of their names under user's home directory tree | find ~ -name 'top*' -newer /etc/motd |
display list of all the C files ( fuiles with ".c" extension ) in current folder | find . -name '*.c' -ls |
find all regular files in current folder which are atleast 1 level deep and search in the alphabetical order of the directory names | find -s . -mindepth 1 -type f -print0; printf '\0'; |
Format time string @1267619929 according to default time format | date -d @1267619929 |
SSH in server 'server' as user 'user' with X11 forwarding disabled | ssh -x user@server |
Find the "erl" executable in $PATH and read the "RELEASES" file to extract the erlang release number | awk -F, 'NR==1 {gsub;print $3}' "$(dirname $(readlink -f $))/../releases/RELEASES" |
Find users whose names begin with "ab" and ends with "1" | who | cut -d ' ' -f 1 | grep -e '^ab' -e '1$' |
Recursively change the owner and group of all files in the current directory to "andrewr" | chown -R andrewr:andrewr * |
Find all files in the current directory tree, except GIT files | find -type f -name .git -prune -o -print |
Compare sorted files 'f1.txt' and 'f2.txt' and print in three columns strings unique for first file, second file, and common ones | comm <(sort f1.txt) <(sort f2.txt) |
Search the current directory tree for PHP files changed less than 14 days ago | find . -name *.php -ctime -14 |
change the permissions of mp3 files in the folder /var/ftp/mp3 to 644 | find /var/ftp/mp3 -name '*.mp3' -type f -exec chmod 644 {} \; |
List the last modified file under "$DIR" | find $DIR -type f -printf "%T@ %p\n" | sort -n | cut -d' ' -f 2 | tail -n 1 |
Calculate md5 sums for each files matching 'main.cpp*' | md5sum main.cpp* |
Recursively change the owner and group of "/opt/antoniod/" to "antoniod" | chown -R antoniod:antoniod /opt/antoniod/ |
display all the files in the current folder. | find . |
Find all files under /home/username/public_html/modules and set their permission to 640 | find /home/username/public_html/modules -type f -exec chmod 640 {} + |
find all the files in the current folder which have executable permission to all the users and display the ten files | find . -perm /a=x | head |
Remove the "^M" characters from all *.ext files under /home directory | find /home -type f -name "*.ext" -exec perl -pi -e 's/\r//g' {} \; |
display long listing of all regular/normal files whose size is less than 50 bytes. | find /usr/bin -type f -size -50c -exec ls -l '{}' ';' |
Prints dates of $m month in $y year, preceded by month number and slash like ' 10/1'. | cal $m $y | sed -e '1,2d' -e 's/^/ /' -e "s/ \([0-9]\)/ $m\/\1/g" |
Grab the output of "basename" and echo it to stdout, which basename would do by default anyway. | echo `basename "$filename"` |
list names of bind functions containing "/" | bind -l | grep / |
search all the files in the current folder using regex | find . -regex ".*/my.*p.$" |
find all the png files in the current folder which are present in the pattern list search .txt | find . -name '*.png' | grep -f search.txt |
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' |
Run 'git pull' in every git repository in the current directory | find . -type d -name .git -exec sh -c "cd \"{}\"/../ && pwd && git pull" \; |
Copy file linked to by "file" to "file" | cp --remove-destination `readlink file` file |
Find all php files that belong to user 'takuya' and have been modified in the last 1 day | find -user takuya -name '*.php' -daystart -mtime -1 |
list *.pdf files under the /home/user/Desktop directory. | find /home/user/Desktop -name '*.pdf' |
Print the sorted unique column of usernames of users who are currently logged in without the header | finger | tail -n +2 | awk '{ print $1 }' | sort | uniq |
Find all files that have additional permissions | find / -perm -644 |
Dump the character output of 'echo `echo "Ho ho ho"`' | echo `echo "Ho ho ho"` | od -c |
View line 500 to line 500 + 501 in gzipped file "bigfile.z" | zcat bigfile.z | tail -n +500 | head -501 |
Change owner to "$1" and group to "httpd" of ".htaccess" | chown $1:httpd .htaccess |
Delete all .svn files/directories under current directory | find . -name .svn -exec rm -rf {} \; |
Print unique lines of sorted "File 1" compared with sorted "File 2" | comm -23 "File 1" "File 2" |
Look for files with wide open permissions | find . -type f -perm a=rwx -exec ls -l {} \; |
Find all *.* files not within .git directory and run $SED_CMD -i "s/$1/$2/g" on each of them | find . -type f -name "*.*" -not -path "*/.git/*" -print0 | xargs -0 $SED_CMD -i "s/$1/$2/g" |
change the ownership of all regular/normal files in the current directory after users confirmation | find . -type f -ok chown username {} \; |
Print relative path of device of disk with UUID "b928a862-6b3c-45a8-82fe-8f1db2863be3" | readlink /dev/disk/by-uuid/b928a862-6b3c-45a8-82fe-8f1db2863be3 |
Search case insensitively for 'foo' in all the files with '.java' extension under current directory tree and show only the file names | find . -type f -name "*.java" -exec grep -il 'foo' {} \; |
Count all the lines of code in all php files in current directory recursively | find . -name "*.php" | xargs grep -v -c '^$' | awk 'BEGIN {FS=":"} { $cnt = $cnt + $2} END {print $cnt}' |
change owner of the file file.sh to user root | $sudo chown root file.sh |
Move all hidden files in "wordpress" to the current directory | mv wordpress/.* . |
Print list of file systems currently mounted. | df -h | awk '{print $1}' |
Read a line from standard input and save each word in the bash array variable "first" | read -a first |
Print file information of command "bash" | echo $(ls -l $(which bash)) |
Make directory "/tmp/googleTestMock" | mkdir /tmp/googleTestMock |
Find all regular files with '.what_to_find' extension in the entire filesystem and move them to directory '/new_directory' | find / -iname "*.what_to_find" -type f -exec mv {} /new_directory \; |
Find all files under minimum 1 level down the current directory | find . -mindepth 1 -type f |
Number each non-blank line of standard input | nl |
Find all *.c files under and below the current directory that contain "wait_event_interruptible" | find . -name \*.c -print | xargs grep wait_event_interruptible /dev/null |
Set the setgid bit on all directories in the repository "/git/our_repos" | find /git/our_repos -type d -exec chmod g+s {} + |
Set prompt to the system host name and history number | PS1="`hostname`:\!>" |
Search core files in current direcory and delete . | find . -name core -exec rm {} \; |
Split "biglogfile.gz" into chunks of 500000 line gzipped compressed files | zcat biglogfile.gz | split -l500000 --filter='gzip > $FILE.gz' |
Find all *.rb and *.py files/directories under current directory | find . -name "*.rb" -or -name "*.py" |
Change permissions to 755 for all directories in the current directory tree | find . -type d | xargs chmod -v 755 |
Copy directory tree preserving UID and GID and leaving user files alone | find . -depth -print | cpio -o -O /target/directory |
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