nl_command
stringlengths 14
387
| bash_code
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532
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|---|---|
search for a pattern in all the files in the current folder | find . | xargs grep <string-to-find> |
Execute `somecommand' on each file from the current directory tree with the environment variable f set to the filename | find . -exec env f={} somecommand \; |
Gets IP address of first listed network interface in system. | ifconfig | grep -E "{3}[0-9]{1,3}" | grep -v 127.0.0.1 | awk '{ print $2 }' | cut -f2 -d: |
Set variable OS to the name of the operating system, ie. "Linux" | OS=`uname -s` |
Search the directory given as variable $d for empty subdirectories | find "$d" -mindepth 1 -prune -empty |
Save the list of *.html files in the current directory tree to html_files.txt | find . -type f -name "*.html" > html_files.txt |
display top 11 files along with the last access date for all the files in the file system | find / -type f -printf "\n%AD %AT %p" | head -n 11 |
Change the ownership of all aluno1's files in the current directory and below to aluno2 | find . -user aluno1 -exec chown aluno2 {} |
Recursively removes all files like '*.pyc' in a current folder. | find . -name "*.pyc"|xargs rm -rf |
Locate OGG files under the home directory larger than 100 megabytes | find $HOME -iname '*.ogg' -size +100M |
displays all files in the current directory | find . |
Set the 'verbose' shell option causing bash to print shell input lines as they are read | set -v |
Print the names of all files and directories in the current directory tree | find . |
find all the files in the home folder which end with ".tex" | find ~ -iname '*.tex' |
Remove all *.m4a files in the current directory and its subdirectories | find . -type f -name '*.m4a' -exec bash -c 'rm "$0"' '{}' \; |
Create intermediate directories as required directory{1..3} and subdirectory{1..3} and directories subsubdirectory1 and subsubdirectory2 | mkdir -p directory{1..3}/subdirectory{1..3}/subsubdirectory{1..2} |
Prints long recursive listing of all content of a root folder, appending output to 'output.file'. | ls -lR / | tee -a output.file |
Print content of '1' file | $ cat 1 |
Display an infinite number of lines consisting of "y", until the user presses the Q key. | yes | cat | more |
Search for 'example' in all regular files under current directory tree | find . -type f -print | xargs grep "example" |
Start 'top' to monitor all processes with the default settings. | top |
Log output of a command in screenlog.0 every 10 seconds | screen -d -m -L python test.py |
Search the current directory tree for regular files modified within the past 24 hours whose names do not end with ".DS_Store" | find . -mtime -1 ! -name '.DS_Store' -type f -printf '%f\n' |
Look for *log files in directories at most three levels down the directory tree | find / -maxdepth 3 -name "*log" |
List all files in the current directory tree that were last modified yesterday or later | find -newermt yesterday -ls |
Find all aliencoders.[0-9]+ files/directories under /home/jassi/ directory | find /home/jassi/ -name "aliencoders.[0-9]+" |
Search for 'pattern_to_search' in all regular files with '.txt' extension under '/directory/containing/files' and show the matched lines along with filenames | find /directory/containing/files -type f -name "*.txt" -exec grep -H 'pattern_to_search' {} + |
Copy "src" to "dest" if "src" is newer than "dest" | rsync -u src dest |
find all files that do not have execute permission to all | find . -type d ! -perm -111 |
Find all directories under current directory excluding directories (along with their contents) that start with a . (dot) in their names | find -type d -a ! -name '.?*' -o ! -prune |
Search the current directory tree for *bash* files printing them on a single line | find . -name "*bash*" | xargs |
Find all files/directories under $1 which have at least write permission for their owner and set write permission for group for these files/directories | find $1 -perm -u+w -exec chmod g+w {} \; |
Search the entire file hierarchy for files named zsh that exist on ext3 file systems and print out detailed information about the file while sending anything printed to stderr to /dev/null. | find / -fstype ext3 -name zsh -ls 2> /dev/null |
Calculate the sum of the numbers in '/file/with/numbers' | cat /file/with/numbers | php -r '$s = 0; while { $e = fgets; if break; $s += $e; } echo $s;' |
Search the home directory tree for regular files modified yesterday | find ~ -daystart -type f -mtime 1 |
Print all string from file 'file2.txt' matching pattern in file 'file1.txt' | grep "$(cat file1.txt)" file2.txt |
Print each logged in user's full name | finger -l | grep "Name:" | cut -d ":" -f 3 | cut -c 2- | sort | uniq |
Report file system containing path to /dir/inner_dir/ disk usage in kilobytes. | df -k /dir/inner_dir/ |
Display the last 3 characters of variable foo. | echo $foo | rev | cut -c1-3 | rev |
Remove all broken symlinks from the /usr/ports/packages directory tree | find -L /usr/ports/packages -type l -delete |
Recursively change the owner of all files in "/usr/local/lib/node_modules" to the current user | sudo chown -R $USER /usr/local/lib/node_modules |
Find all regular files in the /path/to/base/dir tree | find /path/to/base/dir -type f |
Expand bash array "myargs" as arguments to "mv" | mv "${myargs[@]}" |
Archive file 'file' with bzip2 tool, store compressed data to a file 'logfile' and also print to screen | bzip2 -c file | tee -a logfile |
Display inputfile all on one line (replace newlines by spaces) | awk '{printf "%s|", $0} END {printf "\n"}' inputfile |
Prints long listing of content in a root folder, including hidden files, with human-readable sizes, and stores output to '/root/test.out' file. | ls -hal /root/ > /root/test.out |
Find files owned by nonexistent users | find / -nouser -print |
replaces the last occurrence of 'a' with 'c' | tac infile.txt | sed "s/a/c/; ta ; b ; :a ; N ; ba" | tac |
Save the short system host name to variable "hostname" | hostname=`hostname -s` |
Remove all files whose names start with spam- | find . -name 'spam-*' | xargs rm |
list broken symbolic links under "somedir" | find "somedir" -type l -print0 | xargs -r0 file | grep "broken symbolic" | sed -e 's/^\|: *broken symbolic.*$/"/g' |
Find all configration files in Home directory & Subtitute permanently in files | find $HOME -name "*.conf" -exec sed -i 's/vermin/pony/g' {} \; |
Move all *.pdf.marker files and their corresponding *.pdf files under ${INPUT_LOCATION} to ${OUTPUT_LOCATION} | find ${INPUT_LOCATION} -name '*.pdf.marker' -exec sh -c 'mv $0 `dirname $0`/`basename $0 .marker` $1' {} ${OUTPUT_LOCATION} \; |
Locate all files in the current directory and below that have "testfile" in their names | find -name "*testfile*" |
Append all *.mp3 files modified within the last 180 days to tar archive `music.tar' | find . -name -type f '*.mp3' -mtime -180 -print0 | xargs -0 tar rvf music.tar |
Create intermediate directoriy path2 as required and directories a..z | mkdir -p path2/{a..z} |
find md5sum of 401 | yosemite$ echo -n 401 | md5 |
Recursively counts non-blank, non-comment lines in all *.c files in a current folder. | find . -type f -name '*.c' -exec cat {} \; | sed '/^\s*#/d;/^\s*$/d;/^\s*\/\//d' | wc -l |
Print the list of files in the current directory tree with "xx" preceding and following each filename | find . -exec echo xx{}xx \; |
find all headers file *.h in /nas/projects directory | find /nas/projects -name "*.h" |
Correct permissions for files in the web directory | find /your/webdir -type f | xargs chmod 644 |
Print out the contents of all *.txt files in the home directory | find ~ -name '*.txt' -print0 | xargs -0 cat |
Search the regular files from directory tree 'directory_name' for "word" and print the names of the matched files | find directory_name -type f -print0 | xargs -0 grep -li word |
find all the php files in the current folder | find . -name \*.php |
Copy "/Users/username/path/on/machine/" to "[email protected]:/home/username/path/on/server/" and convert encoding from UTF-8-MAC to UTF-8 | rsync --iconv=UTF-8-MAC,UTF-8 /Users/username/path/on/machine/ '[email protected]:/home/username/path/on/server/' |
Unhide all hidden files in the current directory | find . -maxdepth 1 -type f -name '\.*' | sed -e 's,^\./\.,,' | sort | xargs -iname mv .name name |
Show the files or directories in the current directory whose names are not "MyCProgram.c" | find -maxdepth 1 -not -iname "MyCProgram.c" |
Execute all arguments to a shell script and write the output to console and "$FILE" | $@ | tee $FILE |
find all files in the current folder which start with pro | find . -name pro\* |
find all the files in the entire file system that have been modified between 50 to 100 days and display ten files | find / -mtime +50 -mtime -100 | head |
display all the files in the current folder which end with ".bash" | find . -name "*.bash" |
find all the files ending with undo in the current folder and calculate the total size of these files | find . -name "*.undo" -ls | awk '{total += $7} END {print total}' |
display all the files in the current directory excluding those that are in the 'secret' directory | find . -name 'secret' -prune -o -print |
Add read and execute permission to command "node" | sudo chmod +rx $ |
Make an archive of .txt files from the dir/ directory tree | find dir/ -name '*.txt' | tar -c --files-from=- | bzip2 > dir_txt.tar.bz2 |
display all file in the folder /dir/to/search except ".c" files | find /dir/to/search/ -not -name "*.c" -print |
Set variable OS to the name of the operating system, ie. "Linux" | OS=$(uname -s) |
Find all directories under minimum 1 level down the $GIVEN_DIR directory with null character as the delimiter | find "$GIVEN_DIR" -type d -mindepth 1 -print0 |
Exclude directory from find . command | find . -name '*.js' -and -not -path directory |
print bindings for "p" and "e" with no case sensitivity | bind -p|grep -i '"[pE]"' |
Search the current directory tree for files whose names end in "rb" or "js" | find . -regextype posix-egrep -regex ".*(rb|js)$" |
Enables shell option 'lithist'. | shopt -s lithist |
List in detail the regular files from the /somelocation/log_output directory tree that were last changed more than 40 days ago | find /somelocation/log_output -type f -ctime +40 -exec ls -l {} \; |
Convert all characters in "$a" to upper case and save to variable "b" | b=`echo "$a" | sed 's/./\U&/g'` |
Print the lines of file "strings" specified in file "index" | join < < |
find all files under the current directory, filtering the output through a regular expression to find any lines that contain the word foo or bar. | find ./ | grep -E 'foo|bar' |
Find UTF-8 files with BOM | find . -type f -print0 | xargs -0 awk '/^\xEF\xBB\xBF/ {print FILENAME} {nextfile}' |
Calculate the md5sum of the executable file of command 'c++' | md5sum `which c++` |
dispaly a long listing of all the files in the current folder which have been modified in the last 14 days | find . -mtime -14 -ls |
Add cron lists from "file1" and "file2" to list of cron jobs, giving errors for any lines that cannot be parsed by crontab. | cat file1 file2 | crontab |
Change every directory under "/var/www/html/" to have permissions 775 | sudo find /var/www/html/ -type d -exec chmod 775 {} \; |
Retrieve only build number of current kernel, ie. #104 | uname -v | grep -o '#[0-9]\+' |
Find all the files in the current directory recursively whose permissions are 777 | find . -type f -perm 0777 -print |
Search the current directory tree for regular files whose names end in ".shtml" or ".css" | find . -type f \( -name "*.shtml" -or -name "*.css" \) |
Find all *.java files under current directory and replace every occurrences of 'subdomainA.example.com' with 'subdomainB.example.com' in those files | find /home/www -name "*.java" -type f -print0 | xargs -0 sed -i 's/subdomainA\.example\.com/subdomainB.example.com/g' |
Find UTF-8 files with BOM | find . -type f -print0 | xargs -0 awk '/^\xEF\xBB\xBF/ {print FILENAME} {nextfile}' |
Prints random line from file $FILE. | sort --random-sort $FILE | head -n 1 |
Find files with name `aaa.txt' under the current directory | find . -name aaa.txt |
Save hexadecimal byte 10 in binary file "file.moi" to variable "day" | day=$(od -t x1 --skip-bytes=9 --read-bytes=1 file.moi | head -1 | awk '{print $2}') |
Make directories to "/some/path" as needed | mkdir -p ./some/path |
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