All commands

All commands (13,931)

sorted by

Works for repos cloned via ssh or https. Show Sample Output

git remote -v | sed -n '/github.com.*push/{s/^[^[:space:]]\+[[:space:]]\+//;s|git@github.com:|https://github.com/|;s/\.git.*//;p}'

bartonski · 2019-10-11 16:50:22 0

List the binaries installed by a Debian package

GNU grep's perl-compatible regular expression(PCRE).
This is sample output - yours may be different.
0

binaries () { dpkg -L "$1" | grep -Po '.*/bin/\K.*'; }

metropolis · 2019-10-05 10:52:15 0
List the binaries installed by a Debian package

This shell function displays a list of binaries contained in an installed package; works on Debian based Linux distributions. Show Sample Output
This is sample output - yours may be different.
```
$ binaries findutils
find
xargs
```
0

binaries () { for f in $(dpkg -L "$1" | grep "/bin/"); do basename "$f"; done; }

lordtoran · 2019-10-05 10:37:51 0
Convert tab separate file (TSV) to JSON with jq

With this command you can convert a tab separate file (TSV) into a JSON file with jq. For example, this input.tsv i-0b9adca882e5e6326 172.16.0.188 i-088dd69e5c3624888 172.16.0.102 i-0e70eac180537d4aa 172.16.0.85 will produce the showed output. Show Sample Output
This is sample output - yours may be different.
```
[
  {
    "id": "i-0b9adca882e5e6326",
    "ip": "172.16.0.188"
  },
  {
    "id": "i-088dd69e5c3624888",
    "ip": "172.16.0.102"
  },
  {
    "id": "i-0e70eac180537d4aa",
    "ip": "172.16.0.85"
  }
]
```
0

cat input.tsv | jq --raw-input --slurp 'split("\n") | map(split("\t")) | .[0:-1] | map( { "id": .[0], "ip": .[1] } )'

nordri · 2019-10-01 10:52:35 0

Top 10 Memory Processes

It displays the top 10 processes sorted by memory usage Show Sample Output

ps aux | sort -rk 4,4 | head -n 10

x3mboy · 2019-09-26 16:37:33 0

edit, view or execute last modified file with a single key-press

Copy this function to command line, press 'Enter' 'f'' 'Enter' to execute (sentence on the left written only for newbies). Hint 'e|x|v|1..9' in front of displayed last modified file name means: "Press 'e' for edit,'x' for execute,'v' for view or a digit-key '1..9' to touch one file from the recent files list to be last modified" and suggested (hidden files are listed too, else remove 'a' from 'ls -tarp' statement if not intended). If you find this function useful you can then rename it if needed and append or include into your ~/.bashrc config script. With the command . ~/.bashrc the function then can be made immediately available. In the body of the function modifications can be made, i.e. replaced joe editor command or added new option into case statement, for example 'o) exo-open $h;;' command for opening file with default application - or something else (here could not be added since the function would exceed 255 chars). To cancel execution of function started is no need to press Ctrl-C - if the mind changed and want to leave simple Enter-press is enough. Once defined, this function can with typeset -f f command be displayed in easy readable form Show Sample Output
This is sample output - yours may be different.
```
knoppix5@kanta:~/SKRIPTE$ f
...
1       rdiff_backup_to_sda3.txt
2       arrange_windows_simple_from_xfce_panel.txt
3       .config.sh
4       arrange_windows.txt
5       read1.sh
6       read3.sh
7       lsb.sh
8       board9.pgn
9       read4.sh
e|x|v|1..9 read4.sh?
```
2

f() { ls -lart;e="ls -tarp|grep -v /|tail -9";j=${e/9/1};g=${e/9/9|nl -nln};h=$(eval $j);eval $g;read -p "e|x|v|1..9 $(eval $j)?" -n 1 -r;case $REPLY in e) joe $h;;v)cat $h;;x) eval $h;;[1-9]) s=$(eval $g|egrep ^$REPLY) && touch "${s:7}" && f;;esac ; }

knoppix5 · 2019-09-26 11:58:37 0

Graphical tree of sub-directories with files

The command finds every item within the directory and edits the output so that subdirectories are and files are output much like the tree command Show Sample Output

find . -print | sed -e 's;[^/]*/;|-- ;g;s;-- |; |;g'

jonavon · 2019-09-25 17:49:35 1

Create backup copy of file, adding suffix of the date of the file modification (NOT today's date)

If your `date` command has `-r` option, you don't need `stat`
This is sample output - yours may be different.
1

cp file{,.$(date -r file "+%y%m%d")}

brx75x · 2019-09-19 09:42:38 0
Check difference between two file directories recursively
This is sample output - yours may be different.
0

diff <(tree /dir/one) <(tree /dir/two)

redraw · 2019-09-19 01:33:08 0
Bitcoin Brainwallet Private Key Calculator
This is sample output - yours may be different.
0

(read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))

Jacki188 · 2019-09-15 21:31:52 0
Rsync using SSH and outputing results to a text file

--delete will delete copies on remote to match local if deleted on local --stats will output the results -z zip -a archive -A preserve ACL -x don't cross filesystem boundaries -h human readable -e specify the remote shell to use
This is sample output - yours may be different.
1

rsync --delete --stats -zaAxh -e ssh /local_directory/ username@IP_of_remote:/Remote_Directory/ > /Text_file_Directory/backuplog.txt

chicagonpg · 2019-09-10 21:00:29 0
Get a list of stale AWS security groups

AWS provides a method to audit for obsolete AWS security groups. From their documentation: "Describes the stale security group rules for security groups in a specified VPC. Rules are stale when they reference a deleted security group in a peer VPC, or a security group in a peer VPC for which the VPC peering connection has been deleted." Show Sample Output
This is sample output - yours may be different.
```
aws ec2 describe-stale-security-groups --vpc-id vpc-cafebabe
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-babebabe123414
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-095ce7acd7e772170
{
    "StaleSecurityGroupSet": []
}
aws ec2 describe-stale-security-groups --vpc-id vpc-face1358
{
    "StaleSecurityGroupSet": []
}
```
0

aws ec2 describe-vpcs --query 'Vpcs[*].VpcId' --output text |xargs -t -n1 aws ec2 describe-stale-security-groups --vpc-id

vocatan · 2019-09-09 18:54:08 0
Create backup copy of file, adding suffix of the date of the file modification (NOT today's date)
This is sample output - yours may be different.
1

cp file{,.$(date -d @$(stat -c '%Y' file) "+%y%m%d")}

rgawenda · 2019-09-09 11:49:28 1
Perform Real-time Process Monitoring Using Watch Utility
This is sample output - yours may be different.
5

watch -n 1 'ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head'

wuziduzi · 2019-09-08 06:06:08 0
Rotate a video file by 90 degrees CW

Change video orientation in metadata only
This is sample output - yours may be different.
1

ffmpeg -i in.mov -c copy -metadata:s:v:0 rotate=90 out.mov

unixmonkey100988 · 2019-09-07 08:16:33 0
nmap get all active online ips from specific network

scan whole specific network for active online ips Show Sample Output
This is sample output - yours may be different.
```
192.168.1.79
192.168.1.82
192.168.1.83
192.168.1.84
192.168.1.86
192.168.1.87
192.168.1.89
192.168.1.94
192.168.1.97
192.168.1.100
192.168.1.101
192.168.1.104
192.168.1.110
192.168.1.119
192.168.1.120
```
5

nmap -n -sn 192.168.1.0/24 -oG - | awk '/Up$/{print $2}'

aysadk · 2019-09-04 13:31:53 0

Show whats going on restoring files from a spectrum protect backup

spectrum protect's dsmc command shows file names and total amount of restore. This command shows which files are actually open and their siz in GB and highlights the change to the previous output Show Sample Output

watch -n60 -d 'lsof -w /filesysname|grep -v NAME|awk '\''{$7=int($7/1073741824) " GB"; print $7, $9}'\'''

BodoGreif · 2019-09-02 11:49:20 0

Rotate a video file by 90 degrees CW

Transpose parameter: 0 = 90CounterCLockwise and Vertical Flip (default) 1 = 90Clockwise 2 = 90CounterClockwise 3 = 90Clockwise and Vertical Flip
This is sample output - yours may be different.
-1

ffmpeg -i in.mov -vf "transpose=1" out.mov

malathion · 2019-09-02 04:54:31 0
Belgian banking "structured communication"

Derived from current time down to minutes. Show Sample Output
This is sample output - yours may be different.
```
+++190/8272/22249+++
```
1

DATE=`date +"%y%m%d%H%M"`; CHECKSUM=`printf "%02d" $((DATE%97))`; echo $DATE$CHECKSUM |sed -e 's#$[0-9]\{3\}$$[0-9]\{4\}$$[0-9]\{5\}$#+++\1/\2/\3+++#'

lowry · 2019-08-27 20:24:38 0
List all ubuntu installed packages in a single line

Use xargs command to make one line.
This is sample output - yours may be different.
0

dpkg --get-selections | grep -Evw 'deinstall$' | cut -f1 | sort -u | xargs

metropolis · 2019-08-26 15:57:52 1

List all ubuntu installed packages in a single line

This command lists all currently installed packages in ubuntu in a single line, for example to use later with apt install. Show Sample Output

bugmenot · 2019-08-26 15:16:21 0

Fast portscanner via Parallel
This is sample output - yours may be different.
1

parallel -j200% -n1 -a textfile-with-hosts.txt nc -vz {} ::: 22

wuziduzi · 2019-08-25 02:59:14 1
Fast portscanner via xargs
This is sample output - yours may be different.
-1

xargs -i -P 1200 nc -zvn {} 22 < textfile-with-hosts.txt

wuziduzi · 2019-08-25 02:56:52 0
list human readable files

include in the list human readable hidden files too: file .* *|grep 'ASCII text'|sort -rk2 more reliable command: ls|xargs file|grep 'ASCII text'|sort -rk2 and include hidden files: ls -a|xargs file|grep 'ASCII text'|sort -rk2
This is sample output - yours may be different.
1

file *|grep 'ASCII text'|sort -rk2

knoppix5 · 2019-08-23 00:47:07 0
delete at start of each line until character

GNU grep's PCRE(Perl-compatible regular expressions).
This is sample output - yours may be different.
1

grep -Po '^(.*?:\K)?.*'

metropolis · 2019-08-21 01:34:17 0
1 2 3 > Last ›

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Set laptop display brightness

Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

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"

Install pip with Proxy

Installs pip packages defining a proxy

Comma insertions

Insert a comma where necessary when counting large numbers. I needed to separate huge amounts of packets and after 12+ hours of looking in a terminal, I wanted it in readable form.

Edit a google doc with vim

Google just released a new commend line tool offering all sorts of new services from the commend line. One of them is uploading a youtube video but there are plenty more google services to interact with. Download it here: http://code.google.com/p/googlecl/ Manual: http://code.google.com/p/googlecl/wiki/Manual This specific command courtesy of lifehacker:http://lifehacker.com/5568817/ Though all can be found in manual page linked above.

Install pip with Proxy

Installs pip packages defining a proxy

Be notified about overheating of your CPU and/or motherboard

You'll be notified if your core 1 temperature exceeds 50 degrees, you can change the monitored device by editing the "Core 1" or change the critical temperature by editing the "-gt 50" part. Note: you must have lm-sensors installed and configured in order to get this command working.

Print average GPU core temperature

Search commandlinefu and view syntax-highlighted results in vim

Here is the full function (got trunctated), which is much better and works for multiple queries. function cmdfu () { local t=~/cmdfu; until [[ -z $1 ]]; do echo -e "\n# $1 {{{1" >> $t; curl -s "commandlinefu.com/commands/matching/$1/`echo -n $1|base64`/plaintext" | sed '1,2d;s/^#.*/& {{{2/g' | tee -a $t > $t.c; sed -i "s/^# $1 {/# $1 - `grep -c '^#' $t.c` {/" $t; shift; done; vim -u /dev/null -c "set ft=sh fdm=marker fdl=1 noswf" -M $t; rm $t $t.c } Searches commandlinefu for single/multiple queries and displays syntax-highlighted, folded, and numbered results in vim.

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)

All commands (13,931) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

All commands (13,931)

sorted by