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May 19, 2015 - A Look At The New Commandlinefu: I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
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awk, bash, curl, find, grep, Linux, sed

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Functions

Terminal - All commands - 12,420 results

nc $telnetserver 23 < $commandfile

2009-08-07 21:32:38

User: flokra

Tags: netcat telnet automatisation

Up
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pipe commands from a textfile to a telnet-server with netcat

sends commands specified in $commandfile to the telnet-server specified by $telnetserver.

to have newlines in $commandfile interpreted as ENTER, save the file in CR+LF (aka "Windows-Textfile") format.

if you want to save the output in a separate file, use:

nc $telnetserver 23 < $commandfile > $resultfile

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wget http://checkip.dyndns.org && clear && echo && echo My IP && egrep -o '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}' index.html && echo && rm index.html

2009-08-07 21:21:59

User: onkelchentobi

Functions: clear echo egrep rm wget

-2

Up
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Get your external IP address

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dpkg-deb -x $debfile $extractdir; dpkg-deb -e $debfile $extractdir/DEBIAN;

2009-08-07 20:33:43

User: flokra

Tags: Debian dpkg packaging

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complete extraction of a debian-package

extracts the debian-package $debfile to $extractdir, including all packaging-information. to repack the package, just type:

dpkg-deb -b $extractdir

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sudo du -sh $(ls -d */) 2> /dev/null

2009-08-07 19:00:09

User: Code_Bleu

Functions: du ls sudo

Tags: disk usage

Up
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Get the size of all the directories in current directory

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nslookup commandlinefu.com|sed 's/[^0-9. ]//g'|tail -n 1|awk -F " " '{print $2}'

2009-08-07 17:32:55

User: thundernode

Functions: awk nslookup sed tail

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Get the ip registered to a domain on OpenWRT

I use this in a script on my openwrt router to check if my DynDNS needs to be updated, saves your account from being banned for blank updates.

ssh-copy-id [email protected]

2009-08-07 16:36:19

User: matthewbauer

Functions: ssh

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Copy ssh keys to [email protected] to enable password-less ssh logins.

Same as original just no $ at start

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dig commandlinefu.com | sed -nr 's/^[^;].*?\s([.0-9]{7,15})$/\1/ p'

2009-08-07 16:11:31

User: birnam

Functions: dig sed

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gets the bare ip(s) of a domain

Strips the non-ip information from the dig output. Could be combined with "head -1" to ensure a single ip is returned. Useful for outputting as a variable for use in scripts.

VBoxManage list vms

2009-08-07 12:43:04

User: linuxrawkstar

Tags: virtualbox virtualization VBoxManage

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Get a list of all your VirtualBox virtual machines by name and UUID from the shell

A similar command that lists only the currently running VMs is thus:

VBoxManage list runningvms

...the above showing a list of VMs by name and UUID in the same format as the "$ VBoxManage list vms" command

VBoxHeadless -s <name|uuid>

2009-08-07 12:36:32

User: linuxrawkstar

Tags: virtualbox virtualization VBoxHeadless

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run a VirtualBox virtual machine without a gui

you can launch a VirtualBox VM from the command line using VBoxManage, but that invokes it in a gui environment.

If you want to just fire off your VM in the background, use VBoxHeadless as shown. To get the names and UUIDs of your VirtualBox VMs, type:

VBoxManage list

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ips(){ for if in ${1:-$(ip link list|grep '^.: '|cut -d\ -f2|cut -d: -f1)};do cur=$(ifconfig $if|grep "inet addr"|sed 's/.*inet addr:$[0-9\.]*$.*/\1/g');printf '%-5s%-15s%-15s\n' $if $cur $(nc -s $cur sine.cluenet.org 128 2>/dev/null||echo $cur);done;}

2009-08-07 10:04:46

User: frozenfire

Functions: cut echo grep ifconfig link sed

Tags: Linux IP ip address

-3

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Get internal and external IP addresses

Gets the internal and external IP addresses of all your interfaces, or the ones given as arguments

perl -ne 'split /,/ ; $a+= $_[3]; END {print $a."\n";}' -f ./file.csv

2009-08-07 09:35:52

User: ioggstream

Functions: perl

Tags: column CSV sum

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Sum columns from CSV column $COL

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randpw(){ < /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-16};echo;}

2009-08-07 07:30:57

User: frozenfire

Functions: head tr

Tags: password random

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Generate random password

Generates password consisting of alphanumeric characters, defaults to 16 characters unless argument given.

ab -n 9000 -c 900 localhost:8080/index.php

2009-08-07 07:19:40

User: amaymon

Tags: apache benchmark

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benchmark web server with apache benchmarking tool

-n 9000 : Number of requests to perform for the benchmarking session

-c 900 : Number of multiple requests to perform at a time

cd `dirname $_`

2009-08-07 07:08:31

User: amaymon

Functions: cd

Tags: bash bash tricks

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Go to parent directory of filename edited in last command

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dd if=/dev/urandom count=200 bs=1 2>/dev/null | tr "\n" " " | sed 's/[^a-zA-Z0-9]//g' | cut -c-16

2009-08-07 06:32:55

User: amaymon

Functions: cut dd sed tr

Tags: dd sed cut tr

Up
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Generate Random Passwords

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cd !$:h

2009-08-07 00:37:08

User: lingo

Functions: cd

Tags: bash bash tricks

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Go to parent directory of filename edited in last command

Uses the last argument of the last executed command, and gets the directory name from it.

Use $!:t for the filename alone, without the dirname.

for I in $(mysql -e 'show databases' -s --skip-column-names); do mysqldump $I | gzip > "$I.sql.gz"; done

2009-08-07 00:25:23

User: lingo

Functions: gzip

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Backup all MySQL Databases to individual files

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watch -n 1 nc localhost 80 '<<EOF GET / HTTP/1.1 Host: tux-ninja Connection: Close EOF'

2009-08-06 23:20:31

User: JustinHop

Functions: watch

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Test http request every second, fancy display.

Use the command watch, which is really hard to pass nested quotes to, and insert newlines where they are supposed to go in the HTTP request. that is after 1.1 after the host and two newlines at the end before the EOF.

i use this all day

what? no support for HEREDOCs on commandlinefu's interface? need more fu.

cat files.txt | xargs tar -cv | tar -x -c $DIR/

2009-08-06 22:55:21

User: lingo

Functions: cat tar xargs

Tags: copy tar directories files list

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Copy files from list with hierarchy

If you want certain files out of a directory hierarchy, this will copy just the listed files, but will create the directory hierarchy in the new location ($DIR/)

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ifconfig $devices | grep "inet addr" | sed 's/.*inet addr:$[0-9\.]*$.*/\1/g'

2009-08-06 21:43:22

User: matthewbauer

Functions: grep ifconfig sed

Tags: internal ip

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Get your internal IP address and nothing but your internal IP address

Will return your internal IP address.

rm -d **/*(/^F)

2009-08-06 21:41:19

User: claytron

Functions: rm

Tags: find zsh glob

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Delete empty directories with zsh

This command uses the recursive glob and glob qualifiers from zsh. This will remove all the empty directories from the current directory down.

The **/* recurses down through all the files and directories

The glob qualifiers are added into the parenthesis. The / means only directories. The F means 'full' directories, and the ^ reverses that to mean non-full directories. For more info on these qualifiers see the zsh docs: http://zsh.dotsrc.org/Doc/Release/Expansion.html#SEC87

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find . -name "-help" -exec mv {} help.txt \;

2009-08-06 20:43:30

User: petrohs

Functions: find mv

Tags: mv find;

-7

Up
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renombrar un archivo que inicia con guion

sudo snmptrap -m ALL -v 2c -c public trapserver "" UCD-DEMO-MIB::ucdDemoPublic SNMPv2-MIB::sysLocation.0 s "Just here"

2009-08-06 17:32:16

User: vutcovici

Functions: sudo

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Send SNMP traps

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cp path/filename{,-$(date +%Y-%m-%d)}

2009-08-06 13:50:00

User: vutcovici

Functions: cp date

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Create a backup of the file.

It will create a backup of the filename. The advantage is that if you list the folder the backups will be sorted by date. The command works on any unix in bash.

wget -O - http://checkip.dyndns.org|sed 's/[^0-9.]//g'

2009-08-06 12:47:32

User: thundernode

Functions: sed wget

-1

Up
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Get your external IP address

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