nl_command
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Find all directories under current directory and set their permission to 775 | find -type d exec chmod 775 {} + |
Sort standard input in alphabetical order | sort |
Write output of "ls -lR /" to standard output and to "output.file" | ls -lR / | tee output.file |
Show manual page of find utility | man find |
Print each unique line that is duplicated in files "file1" and "file2" combined | sort file1 file2 | uniq -d |
Find all files/directories with '.xml' extension that start with 'log4j' in their names under '/cygdrive/e/MyDocs/Downloads/work/OATS Domain related/' directory tree, search for files that contain the string 'CONSOLE' in their contents, then search for the string 'ASYNC' in the matched files and display the matched lines along with their filenames | find "/cygdrive/e/MyDocs/Downloads/work/OATS Domain related/" -iname "log4j*.xml" | xargs -I % grep -ilr "CONSOLE" "%" | xargs -I % grep -H "ASYNC" % |
Print the most recently modified file | ls -1tr * | tail -1 |
Rename file "edited_blah.tmp" to "/etc/blah" | sudo mv edited_blah.tmp /etc/blah |
display all the regular/normal files in the current folder that are not accessed in the last 10 minutes | find . -type f -amin +10 |
Search the file system for regular files whose names are shorter than 25 characters | find / -type f|egrep "/[^/]{0,24}$" |
Make a playlist out of all the mp3 and ogg files in the home directory | find ~ -type f \ > mynewplaylist.m3u |
recursively convert all symlinks under the current working folder to its regular file | find . -type l | while read f; do /bin/cp -rf --remove-destination -f $(find . -name $) "${f}";done; |
Creates temporary folder and save path to that in a TMPDIR variable. | TMPDIR=$ |
Removes first and last parts of path $path and saves the result in 'finalName' variable. | finalName=$ |
Show the list of files that are not owned by user wnj or are not newer than file `ttt' | find / \! \( -newer ttt -user wnj \) -print |
Find all files that are set user ID to root | find . -user root -perm -4000 -print |
View the contents of "file.txt" with line numbers in the pager "less" | cat -n file.txt | less |
Read a line from standard input with prompt "Enter your age:\n" | read -p $'Enter your age:\n' |
display all the configuration files in "/etc" folder along with their last access and modified timestamps | find /etc -name "*.conf" -printf "%f accessed %AF %Ar, modified %TF %Tr\n" |
Print your/dir if it's an empty directory | find your/dir -prune -empty -type d |
Make directories to "/my/other/path/here/" as needed | mkdir -p /my/other/path/here/ |
start from current directory, skip the directory src/emacs and all files and directories under it, and print the names of the other files found | find . -wholename './src/emacs' -prune -o -print |
Print the current directory | find -mindepth 0 -maxdepth 0 |
Create a symbolc link named "public_html" to "current/app/webroot" under the current working directory | ln -s `pwd`/current/app/webroot public_html |
Print the given file name's extensions. | echo "$NAME" | cut -d'.' -f2- |
Recursively changes group ownership of everything in 'files' to 'apache_user'. | chgrp -R apache_user files |
display all files in the file system which are bigger than 50MB and having size "filename" in them | find / -size +50M -iname "filename" |
Find all files/directories named 'foo' in the entire filesystem | find / -name foo |
Recursively set all permissions under "/opt/lampp/htdocs" to 755 | sudo chmod 755 -R /opt/lampp/htdocs |
Find all *.rb (regular) files under current directory and count their line numbers | find . -name "*.rb" -type f -exec wc -l \{\} \; |
Search for non-empty files | find . ! -size 0k |
Display hostname. | uname -n |
Add line numbers to each non-blank line in "file" starting with number 1000001 | nl -v1000001 file |
display the contents of all the files in the current folder which start with test ( case insensitive search ) | find . -iname '*test*' -exec cat {} \; |
Search for all files in the current directory recursively whose names contain "linkin park", ignoring the case | find . -iname "*linkin park*" |
Create archive "backup1.tar" of all subdirectories of the current directory | find . -mindepth 1 -maxdepth 1 -type d | awk 'BEGIN {FS="./"}; {print $2}' | xargs -d '\n' tar czf backup1.tar |
Find regular files whose names end in .JPG | find . -type f -name "*.JPG" |
Find all foo.mp4 files in the current directory tree and print the pathnames of their parent directories | find . -name foo.mp4 | sed 's|/[^/]*$||' |
Find all files/directories named 'document' in the entire filesystem | find / -name document -print |
Find files that have a modification time of a day ago | find / -mtime 1 |
find all '*.c' files under $HOME directory which context contains sprintf | find $HOME -name '*.c' -print | xargs grep -l sprintf |
display a long listing of all fles in current folder which have been modified in the last 60 minutes | find . -mmin -60 -ls |
Print the physical current working directory | echo "`pwd -P`" |
List all files/directories under current directory matching the posix-egrep type regex ".+\.$" in their names | find . -regextype posix-egrep -regex ".+\.$" -print0 | xargs -0 -n 1 ls |
Rename the *.so files in the current directory tree prepending their names with "lib" | find . -name "*.so" -printf "mv '%h/%f' '%h/lib%f'\n" | bash |
Remove all files that end with 'prefs copy' in their names under '/mnt/zip' directory tree | find /mnt/zip -name "*prefs copy" -print | xargs rm |
Print the largest 20 files under current directory | find . -type f -printf '%k %p\n' |sort -n |tail -n 20 |
Show directory sizes in KB and sort to give the largest at the end | du -sk $(find . -type d) | sort -n -k 1 |
Find deb packages in the current directory recursively | find . -type f -and -iname "*.deb" |
Search the files from the current directory tree for "foo" | find . -exec grep -l foo {} \; |
Prints top-ten of most used utilities from history. | history | awk '{print $2}' | awk 'BEGIN {FS="|"}{print $1}' | sort | uniq -c | sort -nr | head |
Print entire virtual memory usage of the current user | ps -u $ --no-header -o vsz | dc -f - -e '[+z1<r]srz1<rp' |
Prints total number of lines of all *.php files in a current folder and subfolders. | cat `find . -name "*.php"` | wc -l |
Copy the entire directory tree under t1 to t2, do not create a containing t1 directory in t2. | cp -R t1/ t2 |
find all the files in the folder /opt which have been changed in the last 120 minutes | find /opt -cmin -120 |
List all regular files in the current directory tree | find . -type f -exec ls -l '{}' \; |
Search everywhere for hidden file `.profile' | find / -name .profile |
print difference in days between two dates | echo $(( ( $ - $ )/60/60/24 )) days |
long list al the files in the current directory which have only read permission to the group | find . -perm 040 -type f -exec ls -l {} \; |
Find all regular files that were modified more than 60 days ago under '/path-to-directory' directory tree, sort them according to timestamp and print the filenames preceded with the timestamps | find /path-to-directory -type f -mtime +60 -printf "%T@ %p\n" | sort |
Compress files excluding *.Z files | find . \! -name "*.Z" -exec compress -f {} \; |
Creates temporary file name and saves path to it in 'TMP_FILE' variable. | TMP_FILE="$(mktemp -t)" |
Search the current directory tree for directories that can be opened by noone | find -type d ! -perm -111 |
list all .c or .sh regular files. | find . -type f \ |
Format the time string $timestamp according to the format string "%Y-%m-%d %H:%M:%S" and save the output to variable 'CDATE' | CDATE=$ |
Make a list of all files in the current directory tree, except *.png and *.class, and view it in the vim editor | find . | grep -E -v '\.png$|\.class$' | vim - |
Print the paths of the directories from the paths expanded by the glob pattern /path/to/directory/* | find /path/to/directory/* -maxdepth 0 -type d |
Force create a symbolic link named "$*" to the canonical absolute path of "$1" | ln -sf "$" "$*" |
Find all regular files with '.txt' extension excluding 'README.txt' files under current directory tree | find . -type f -name "*.txt" ! -name README.txt -print |
find all ".flac" files starting with "cmn-" and search for files having CJK characters using unicodes | find . -name 'cmn-*\.flac' -print | grep -P './cmn-[\x4e00-\x9fa5]\.flac' |
display all files in the current folder expect text files | find . -name "*.txt" -prune -o -print |
Continuously send "Y" to input of "command-that-asks-for-input" | yes Y | command-that-asks-for-input |
Creates temporary file with file name formatted like /tmp/gnuplot_cmd_$.XXXXXX.gnuplot and saves path to it in a variable 'gnuplotscript'. | gnuplotscript=$(mktemp /tmp/gnuplot_cmd_$.XXXXXX.gnuplot) |
Find all the files whose permissions are 777 | find . -type f -perm 0777 -print |
Find file `foo.bar' and delete it | find /home -name foo.bar -type f -exec rm -f "{}" ';' |
Print either "one" or "two" randomly three times | yes $'one\ntwo' | head -10 | nl | sort -R | cut -f2- | head -3 |
removes last N lines from file.txt | head --lines=-N file.txt |
Display last 100 lines of file-with-line-too-long.txt, waiting for user input after each page. | tail -1000 file-with-line-too-long.txt | more |
Find recursively the latest modified file in the current directory | find . -type f | sed 's/.*/"&"/' | xargs ls -E | awk '{ print $6," ",$7 }' | sort | tail -1 |
Check whether "/full/path" is a mount point with no output and using the exit code | df /full/path | grep -q /full/path |
Recursively change the ownership of all files in "/Users/xxx/Library/Developer/Xcode/Templates" to "xxx" | sudo chown -R xxx /Users/xxx/Library/Developer/Xcode/Templates |
Remove all files that were older than 3 days | find . -type f -mtime +3 –exec rm –f {} \; |
Counts total number of all '*.py' files beginning from root folder, and shows 'tqdm' progress bar. | find / -name '*.py' -exec cat \{} \; | tqdm --unit loc --unit_scale True | wc -l |
Search for files/directories with the case insensitive pattern anaconda* in /var/log | find /var/log/ -iname anaconda* |
Search for regular expression 'expr' in all .c and .h files from the current directory tree | find -name '*.[ch]' | xargs grep -E 'expr' |
Find all files/directories in entire file system that have "write" bit set for either the owner, the group, or others | find / -perm /u+w,g+w,o+w |
force create hard link between $GIT_DIR/../apresentacao/apresentacao.pdf and $GIT_DIR/../capa/apresentacao.pdf | ln -f $GIT_DIR/../apresentacao/apresentacao.pdf $GIT_DIR/../capa/apresentacao.pdf |
Sets 'extglob' shell option. | shopt -s extglob |
Copy local file "$1" to host "$2" into host directory "$3" | cat $1 | ssh $2 "mkdir $3;cat >> $3/$1" |
List every directory under current directory with their child executable files | find . -type d -print -exec bash -c 'find {} -type f -depth 1 -perm +0111 | sort -r' \; |
Print inode, permissions, size, and modification date of all files in the current directory tree as a list with an extra column prepended | tree -afispugD --inodes | awk '{FS="./"; ORS=""; printf}' |
find all files in and under the current directory that have read, write and execute permissions set for all users. | find . -perm 777 -print |
Search all files in the current directory tree, except *.html and *.svn*, for "SearchString" | find . ! -name '*.html' ! -name '*.svn*' -exec grep 'SearchString' {} /dev/null \; |
Create an empty file with a carriage return character in its name. | touch $'Icon\r' |
Find all files whose names end with "~" in the /home/peter directory tree, following symlinks, and delete them | find -L /home/peter -name *~ -exec rm '{}' \; |
set alias "mkdir" for command ¨mkdir -p¨ | alias mkdir=¨mkdir -p¨ |
display all the text files in the current folder | find -name “*.txt” |
Find recursively regular files in the current directory tree | find . -type f -print |
Read a line from standard input into variable "foobar" and suppress showing user input | read -s foobar |
Find all files under Mainfolder directory and redirect the output to outputfle | find Mainfolder -type f > outputfile |
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