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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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Terminal - All commands - 12,422 results
cat -A
2009-02-06 02:37:51
User: mkc
Functions: cat

This is priceless for discovering otherwise invisible characters in files. Like, for example, that stray Control-M at the end of the initial hash bang line in your script, which causes it to generate a mysterious error even though it looks fine.

('od' is the last word, of course, but for many purposes it's much harder to read.)

mencoder -sub heading.ssa -subpos 0 -subfont-text-scale 4 -utf8 -oac mp3lame -lameopts cbr=128 -ovc lavc -lavcopts vcodec=mjpeg -vf scale=320:-2,expand=:240:::1 -o output.avi input.flv
2009-09-21 11:56:55
User: ivalladt

Create subtitle file heading.ssa with just one entry for the entire video duration. Command line sets that entry's text on top of the video as text watermark. If text is an URL works nice for sending people back to your site from a YouTube clip. Output file is lossless encoded and suitable for further processing. Subtitle file can be a URL so it's saved remotely.

perl -e '$i=0;while($i<10){open(WGET,qq/|xargs lynx -dump/);printf WGET qq{http://www.google.com/search?q=site:g33kinfo.com&hl=en&start=$i&sa=N},$i+=10}'|grep '\/\/g33kinfo.com\/'
2009-10-16 12:20:17
User: op4
Functions: grep perl xargs
Tags: web browser

not my cmd... found on the web

geoiplookup www.commandlinefu.com
2009-11-15 11:56:19
User: Sunng

geoip from maxmind

try to get the small utility via:

apt-get install geoip

dc -e '10 [q]sq[dd1=q1-lxx*]dsxxp'
2011-02-16 19:00:21
User: mwgamera
Tags: math factorial

More readable version of factorial calculation using standard desktop calculator instead of bc.

tshark -r data.pcap -R "ip.src==" -T fields -e "ip.dst" |sort |uniq -c
rgrep <searchterm> *
find . -iname ".svn" | xargs rm -r $1
tar zcf - foo | gpg -c --cipher-algo aes256 -o foo.tgz.gpg
2013-03-13 09:44:39
User: skkzsh
Functions: gpg tar

Decrypt with:

gpg -o- foo.tgz.gpg | tar zxvf -
svn ls -R | egrep -v -e "\/$" | xargs svn blame | awk '{count[$2]++}END{for(j in count) print count[j] "\t" j}' | sort -rn
2013-05-03 01:45:12
User: kurzum
Functions: awk egrep ls sort xargs
Tags: svn count

This one has a better performance, as it is a one pass count with awk. For this script it might not matter, but for others it is a good optiomization.

find /logs -ls -xdev | sort -nrk 7 | head -10
find ./ -type f -size +500k -exec ls -1Ash {} \; | sort -hr | cat -n
2013-10-01 10:32:28
User: rgregor
Functions: cat find ls sort

"find ./ ..." could be replaced with "find $PWD ..." to display absolute path instead of relative path.

finfo() { [[ -f "$(cygpath "[email protected]")" ]] || { echo "bad-file";return 1;}; echo "$(wmic datafile where name=\""$(echo "$(cygpath -wa "[email protected]")"|sed 's/\\/\\\\/g')"\" get /value)"|sed 's/\r//g;s/^M$//;/^$/d'|awk -F"=" '{print $1"=""\033[1m"$2"\033[0m"}';}
2013-12-30 07:47:41
User: lowjax
Functions: awk echo return sed

Pass the files path to finfo(), can be unix path, dos path, relative or absolute. The file is converted into an absolute nix path, then checked to see if it is in-fact a regular/existing file. Then converted into an absolute windows path and sent to "wmic". Then magic, you have windows file details right in the terminal. Uses: cygwin, cygpath, sed, and awk. Needs Windows WMI "wmic.exe" to be operational. The output is corrected for easy...

finfo notepad.exe finfo "C:\windows\system32\notepad.exe" finfo /cygdrive/c/Windows/System32/notepad.exe finfo "/cygdrive/c/Program Files/notepad.exe" finfo ../notepad.exe
wget -q -O - http://www.example.com/automation/remotescript.sh | bash /dev/stdin parameter1 parameter2
2015-02-16 16:55:09
User: paulera
Functions: bash wget

Use this command to execute the contents of http://www.example.com/automation/remotescript.sh in the local environment. The parameters are optional.

Alterrnatives to wget:


curl -s http://www.example.com/automation/remotescript.sh | bash /dev/stdin param1 param2


w3m -dump http://www.example.com/automation/remotescript.sh | bash /dev/stdin [param1] [param2]


lynx -source http://www.example.com/automation/remotescript.sh | bash /dev/stdin [param1] [param2]
while true; do read i; echo $[$i]; done
2009-02-18 23:13:09
User: mulad
Functions: echo read

The $[...] block in bash and zsh will let you do math.

echo $[6*7]

This is the same as using $((...)), which also works in ksh. Of course, this is a simple, dumb wrapper and doesn't allow floating-point.

geoip () { curl -s "http://www.geoiptool.com/?IP=$1" | html2text | egrep --color 'City:|IP Address:|Country:' }
2009-11-15 17:59:23
User: wizel
Functions: egrep

If used without arguments, returns own IP info.

If used with argument, returns info about the parsed argument.

In vim: q: && v[cursor movement]y && [paste/edit/save to /tmp/tmp.vim] && move to window to modify && :so /tmp/tmp.vim
2010-05-12 03:03:40
User: tmsh

It's actually really helpful if you've done a lot of replaces in say a header file, and now you want to replace the same text in the source code file.

echo 00:16:3e$(gethostip | awk '{ print tolower(substr($3,3)) }' |sed 's/.\{2\}/:&/g' )
2010-09-23 16:46:21
User: chwilk
Functions: awk echo sed

Useful for creating MAC addresses for virtual machines on a subnet. 00:16:3e is a standard Xen OID, change as needed.

VBoxBlockBoot() { sudo umount "$2"*; sudo chmod 777 "$2"; VBoxManage storageattach "$1" --medium ~/.rawHD4VB_`basename "$2"`.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm "$1";}
2011-07-29 13:04:19
User: totti
Functions: chmod sudo umount

Usage: VBoxBlockBoot [Virtual_Machine] [Block_device]

Eg: VBoxBlockBoot WinXP /dev/sdc

In another words

vm=usb; usb=sdc;sudo umount /dev/$usb* ; sudo chmod 777 /dev/$usb ; VBoxManage storageattach $vm --medium ~/raw-HD-4-VB/$usb.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm $vm


vm --> Name of the virtual machine to start

usb --> Block device to use. (/dev/sdc)

This can used after setup up a boot loader on to my USB pen drive or HDD (After creating Live USB). Here root privilege is needed but not granted to Virtual Box. Thus we can access all our VM.( If we run VBox as root we can't access our VMs). Root privilege is used to

- Unmount the storage device

- Chmod to full access (777)


1. Device information file (rawvmdk file) created by the following command. Need to run only once. Not bad to run many.

VBoxCreateRawDisk() { VBoxManage internalcommands createrawvmdk -filename ~/.rawHD4VB_`basename "$1"`.vmdk -rawdisk "$1"; }

2. Root privilege to umount & chmod

3. Real storage medium (ie /dev/*) (Non-virtual such as USB HD, pen drive, a partition)

4. A virtual m/c already available (here "usb")

vm=usb; usb=sdc;sudo umount /dev/$usb* ; sudo chmod 777 /dev/$usb ; VBoxManage storageattach $vm --medium ~/raw-HD-4-VB/$usb.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm $vm

VBoxBlockBoot() { sudo umount "$2"*; sudo chmod 777 "$2"; VBoxManage storageattach "$1" --medium ~/.rawHD4VB_`basename "$2"`.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm "$1"; }

tshark -r data.pcap -R "ip.addr== && ip.addr== && aim" -d tcp.port==443,aim -T fields -e "aim.buddyname" |sort |uniq -c
find /logs -ls -xdev | sort -nrk 7 | head -10
2013-07-22 08:36:03
User: vidya99343
Functions: find head sort

bash-3.2$ find /logs -ls -xdev | sort -nrk 7 | head -10

1761905 205380 -rwxrwxr-x 1 wsadmin logadmin 210095353 Jul 22 01:33 /logs/intlpymt/Trace.log

652689 187360 -rwxrwxr-x 1 wsadmin logadmin 191663182 Jul 21 23:00 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut_13.07.21_23.00.12.log

2380449 186536 -rwxrwxr-x 1 wsadmin logadmin 190819939 Jul 16 14:03 /logs/omset/traceIntl.log.201307161403.lppwa1213.gz

2119524 183888 -rwxrwxr-x 1 wsadmin logadmin 188110111 Jul 22 01:33 /logs/intlpymt/intlpymtria/Trace.log

652816 160332 -rwxrwxr-x 1 wsadmin logadmin 164011871 Aug 14 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_08142012.gzip

653312 128916 -rwxrwxr-x 1 wsadmin logadmin 131873943 Jul 18 10:49 /logs/websphere/heapdump.20130718.104150.27592.0006.phd.201307181406.lppwa1213.gz

653320 128916 -rwxrwxr-x 1 wsadmin logadmin 131873735 Jul 18 10:40 /logs/websphere/heapdump.20130718.104012.27592.0002.phd.201307181406.lppwa1213.gz

653309 128912 -rwxrwxr-x 1 wsadmin logadmin 131867602 Jul 18 10:46 /logs/websphere/heapdump.20130718.104008.27592.0001.phd.201307181405.lppwa1213.gz

653323 128872 -rwxrwxr-x 1 wsadmin logadmin 131828157 Jul 18 10:41 /logs/websphere/heapdump.20130718.104109.27592.0004.phd.201307181407.lppwa1213.gz

652783 120288 -rwxrwxr-x 1 wsadmin logadmin 123047750 Aug 13 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_0813.2012.gzip


for AAA in $(find /usr/local/bin -type l); do ls -gG "${AAA}"; done
2013-10-01 10:49:12
User: rgregor
Functions: find ls

Display a list of local shell scripts soft-linked to /usr/local/bin

Put local shell scripts to local ~/bin/ directory and soft-link them to /usr/local/bin/ which is in the $PATH variable to run them from anywhere.

watch -d 'echo -e "Remaining: `(nodetool netstats | grep " 0%" | wc -l)` \nCurrent: `(nodetool netstats | grep "%" | grep -v " 0%")`"'
2014-01-01 16:59:01
User: mrwulf
Functions: watch

When bootstrapping or repairing a node this is a simple way to keep tabs on what a node is actively doing.

find . |xargs grep '<html\|<body\|<table' |sed '/~/d;s/:.*//' |sed 's/.*/mv & &.html/' |uniq >run.sh; sh run.sh