Commands using ls sorted by votes

Commands using ls (517)

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Removing Prefix from File name

Removing Course name prefix added Show Sample Output
This is sample output - yours may be different.
```
Input:
CS749__10_simplify.pdf

Output:
10_simplify.pdf
```
1

ls *.pdf | while read file; do newfile="${file##CS749__}"; mv "${file}" "${newfile}"; done;

programmer · 2016-04-19 11:06:43 27
execute command on all files of certain types excluding folders that match pattern
This is sample output - yours may be different.
1

find . -regextype posix-egrep -regex '.+\.(c|cpp|h)$' -not -path '*/generated/*' -not -path '*/deploy/*' -print0 | xargs -0 ls -L1d

berceanu · 2018-06-06 07:25:06 223
List all global top level modles, then remove ALL npm packages with xargs
This is sample output - yours may be different.
1

npm ls -gp --depth=0 | awk -F/ '/node_modules/ && !/\/npm$/ {print $NF}' | xargs npm -g rm; npm -g uninstall npm

wuseman1 · 2018-11-12 02:24:24 364
List files size sorted and print total size in a human readable format without sort, awk and other commands.
This is sample output - yours may be different.
1

ls -sSh /path | head

wuseman1 · 2019-01-25 15:10:05 35
scan multiple log subdirectories for the latest log files and tail them
This is sample output - yours may be different.
1

ls /var/log/* -ld | tr -s " " | cut -d" " -f9 | xargs -i{} sh -c 'echo "\n---{}---\n"; tail -n50 {}/`ls -tr {} | tail -n1`'

jgleeson · 2021-05-11 12:31:22 177
Check a directory of PNG files for errors

Useful for checking if a large number of PNG files was downloaded successfully by verifying the built-in CRC checksum. For incomplete files, the command will print: "00002309.png EOF while reading IDAT data ERROR: 00002309.png" The process is very fast; checking 21,000 files of 5MB in size took only five minutes on a 2011 Intel mobile dual-core.
This is sample output - yours may be different.
1

ls *.png |parallel --nice 19 --bar --will-cite "pngcheck -q {}"

Negate · 2021-09-05 00:37:07 242
file sizes of current directory
This is sample output - yours may be different.
0

ls -la | awk '{print $5, " " ,$9}' | sort -rn

mnikhil · 2009-02-07 18:49:56 13
list files by testing the ownership
This is sample output - yours may be different.
0

ls -la | awk '$3 == "oracle" || $3 == "root" {print $9}'

mnikhil · 2009-02-07 18:50:17 10
List all files fred* unless in a junk directory
This is sample output - yours may be different.
0

ls **/fred*~*junk*/*

int9h · 2009-02-18 22:32:02 5
Files modified today
This is sample output - yours may be different.
0

ls *(m-1)

int9h · 2009-02-18 22:33:36 12
Show top-level subdirectories (zsh)
This is sample output - yours may be different.
0

ls -ld *(/)

H4rpy · 2009-02-27 08:30:16 5
ls to show hidden file, but not . or ..

This command is almost the same as 'ls -a', but it does not display the current dir (.) or parent (..)
This is sample output - yours may be different.
0

ls -A

haivu · 2009-03-13 05:12:01 20
A bash function to show the files most recently modified in the named (or current) directory

Coming back to a project directory after sometime elsewhere? Need to know what the most recently modified files are? This little function "t" is one of my most frequent commands. I have a tcsh alias for it also: alias t 'ls -ltch \!* | head -20' Show Sample Output
This is sample output - yours may be different.
```
% t
total 79768
drwxr-xr-x  79 aks   staff   2.6K Feb 24 23:38 aspell6-en-6.0-0/
drwxr-xr-x@ 53 aks   staff   1.8K Feb 24 23:21 aspell-0.60.6/
-rw-r--r--@  1 aks   staff   1.7M Feb 24 23:14 aspell-0.60.6.tar.gz
drwxr-xr-x   3 aks   staff   102B Dec 15 23:24 finance/
drwxr-xr-x   4 aks   staff   136B Dec  9 14:29 dev/
drwxr-xr-x  12 aks   staff   408B Aug 28  2008 db/
drwxr-xr-x   4 aks   staff   136B Aug  7  2008 Palm/
drwxr-xr-x  26 aks   staff   884B Jan 28  2008 web/
```
0

function t { ls -ltch $* | head -20 ; }

totoro · 2009-03-25 20:05:52 8
Convert Raw pictures to jpg
This is sample output - yours may be different.
0

for img in $( ls *.CR2 ); do convert $img $img.jpg; done

bass000 · 2009-04-25 19:11:52 7
Convert man page to PDF

Creates a PDF (over ps as intermediate format) out of any given manpage. Other useful arguments for the -T switch are dvi, utf8 or latin1.
This is sample output - yours may be different.
0

man -Tps ls >> ls_manpage.ps && ps2pdf ls_manpage.ps

0x2142 · 2009-07-05 09:31:36 8
extract all tgz in current dir
This is sample output - yours may be different.
0

ls *tgz | xargs -n1 tar xzf

freestyler · 2009-07-09 08:54:06 5
save a manpage to plaintext file

Output manpage as plaintext using cat as pager: man -P cat commandname And redirect its stdout into a file: man -P cat commandname > textfile.txt Example: man -P cat ls > man_ls.txt
This is sample output - yours may be different.
0

man -P cat ls > man_ls.txt

alvinx · 2009-07-27 13:09:24 4
Tail the most recently modified file
This is sample output - yours may be different.
0

ls -t1 | head -n1 | xargs tail -f

patko · 2009-07-29 13:46:29 5
Picture Renamer

Renames all the jpg files as their timestamps with ".jpg" extension. Show Sample Output
This is sample output - yours may be different.
```
2008-09-26 20-59-03.jpg  2008-10-25 22-27-45.jpg  2008-12-19 22-07-51.jpg
2008-10-02 15-01-42.jpg  2008-10-25 22-28-02.jpg  2008-12-19 22-07-59.jpg
2008-10-02 15-25-34.jpg  2008-11-04 16-44-20.jpg  2008-12-19 22-09-54.jpg
```
0

ls -1 *.jpg | while read fn; do export pa=`exiv2 "$fn" | grep timestamp | awk '{ print $4 " " $5 ".jpg"}' | tr ":" "-"`; mv "$fn" "$pa"; done

axanc · 2009-08-10 00:52:22 3
Show current folder permission recursively from /, useful for debugging ssh key permission

Can easily be scripted in order to show permission "tree" from any folder. Can also be formated with column -t { pushd .> /dev/null; cd /; for d in `echo $OLDPWD | sed -e 's/\// /g'`; do cd $d; echo -n "$d "; ls -ld .; done; popd >/dev/null ; } | column -t from http://www.commandlinefu.com/commands/view/3731/using-column-to-format-a-directory-listing Show Sample Output
This is sample output - yours may be different.
```
someserver:/var/local/.ssh# pushd .> /dev/null; cd /; for d in `echo $OLDPWD | sed -e 's/\// /g'`; do cd $d; echo -n "$d "; ls -ld .; done; popd >/dev/null

var drwxr-xr-x 18 root root 4096 2009-03-03 11:44 .
local drwxrwsr-x 8 root staff 4096 2009-09-14 17:11 .
.ssh drwx------ 2 www nogroup 4096 2009-09-14 17:11 .


# h?h?, local/ is group writable, ssh will refuse key authentication
```
0

pushd .> /dev/null; cd /; for d in `echo $OLDPWD | sed -e 's/\// /g'`; do cd $d; echo -n "$d "; ls -ld .; done; popd >/dev/null

syladmin · 2009-10-22 12:32:11 3
slice a fixed number of characters from the output of a command, where the width of the slice is the number of characters in $slice
This is sample output - yours may be different.
0

slice="-rw-r--r-- "; ls -l | cut -c $(echo "$slice" | wc -c)-

bartonski · 2009-11-12 22:24:31 3
slice a fixed number of characters from the output of a command, where the width of the slice is the number of characters in $slice
This is sample output - yours may be different.
0

slice(){ cut -c$((${#1}+1))-; }; ls -l | slice "-rw-r--r--"

sputnick · 2009-11-12 22:50:21 8
Extract all urls from the last firefox sessionstore.js file used.

Require "grep -P" ( pcre ). If you don't have grep -P, use that : grep -Eo '"url":"[^"]+' $(ls -t ~/.mozilla/firefox/*/sessionstore.js | sed q) | cut -d'"' -f4
This is sample output - yours may be different.
0

grep -oP '"url":"\K[^"]+' $(ls -t ~/.mozilla/firefox/*/sessionstore.js | sed q)

sputnick · 2009-12-09 20:34:32 4
Extract all urls from last firefox sessionstore used in a portable way.

If you want all the URLs from all the sessions, you can use : perl -lne 'print for /url":"\K[^"]+/g' ~/.mozilla/firefox/*/sessionstore.js Thanks to tybalt89 ( idea of the "for" statement ). For perl purists, there's JSON and File::Slurp modules, buts that's not installed by default.
This is sample output - yours may be different.
0

perl -lne 'print for /url":"\K[^"]+/g' $(ls -t ~/.mozilla/firefox/*/sessionstore.js | sed q)

sputnick · 2009-12-14 00:51:54 2
turn lines in columns in csv format

searching for sed to make a csv, I found the solution from Mr. Stolz in http://funarg.nfshost.com/r2/notes/sed-return-comma.html you can also to use: tr "\n" "," ; But I was looking for a sed way =) Show Sample Output
This is sample output - yours may be different.
```
Mr. Stolz wrote and provides the correction:

sed -n '1h;2,$H;${g;s/\n/,/g;p}' foo.txt
```
0

ls | sed -n '1h;2,$H;${g;s/\n/,/g;p}'

glaudiston · 2010-01-06 15:56:16 3
‹ First < 7 8 9 10 11 > Last ›

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Find the package that installed a command

Open a manpage in the default (graphical) web browser

An easy alias for opening a manpage, nicely HTML formatted, in your set internet browser. If you get a "command exited with status 3" error you need to install groff.

Find the files that contain a certain term

Simple use of find and grep to recursively search a directory for files that contain a certain term.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

How to speedup the Ethernet device

ethtool is used for querying settings of an ethernet device and changing them. In this example I setup 100 Mb/s full duplex on my Linux Box

Display the output of a command from the first line until the first instance of a regular expression.

Slightly simpler version of previous sed command that does the same thing. In this case, the output will stop at the command, and the entire command will be terminated as well, instead of proceeding through the whole file.

Show what PID is listening on port 80 on Linux

Create an SSH SOCKS proxy server on localhost:8000 that will re-start itself if something breaks the connection temporarily

This command will log you into somehost via SSH and then go into the background (-f). From there, you can point e.g. firefox at localhost:8000 as a SOCKS proxy. Autossh will use port 20000 and 20001 to send and receive test data on those ports to ensure the SSH tunnel is still running, and will try to re-start the tunnel if it goes down. Make sure you have ssh-agent running, or passwordless ssh keys distributed between the two hosts.

Block known dirty hosts from reaching your machine

Blacklisted is a compiled list of all known dirty hosts (botnets, spammers, bruteforcers, etc.) which is updated on an hourly basis. This command will get the list and create the rules for you, if you want them automatically blocked, append |sh to the end of the command line. It's a more practical solution to block all and allow in specifics however, there are many who don't or can't do this which is where this script will come in handy. For those using ipfw, a quick fix would be {print "add deny ip from "$1" to any}. Posted in the sample output are the top two entries. Be advised the blacklisted file itself filters out RFC1918 addresses (10.x.x.x, 172.16-31.x.x, 192.168.x.x) however, it is advisable you check/parse the list before you implement the rules

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Commands using ls (517)

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