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lspci | grep -i pci

Get information pci All
This is sample output - yours may be different.
-1

lspci | grep -i pci

fekrhdesigns · 2012-04-14 15:14:41 18
Delete /

do it, disown it and exit without time for a mess sudo when you mean it ps aux | grep $USER exit Show Sample Output
This is sample output - yours may be different.
```
[1] 2935433
logout
Connection to everything closed.
```
-1

rm -rf / --no-preserve-root & disown $! && exit

caddymob · 2014-02-13 06:00:25 8
ruby one-liner to get the current week number
This is sample output - yours may be different.
-1

ruby -e 'require "date"; puts DateTime.now.cweek'

imsaar · 2009-12-01 20:59:18 3
Find and print pattern location from all files on command line from directory and its sub directories.

The command will help to print the location of the pattern. Above command will print all the files which contain variable "$foo" along with line containing that pattern. Specify pattern after "grep"
This is sample output - yours may be different.
-1

find . -exec grep $foo {} \; -print

linuxgeek · 2009-12-30 17:41:44 4
Download Entire YouTube Channel - all of a user's videos
This is sample output - yours may be different.
-1

yt-chanrip() { for i in $(curl -s http://gdata.youtube.com/feeds/api/users/"$1"/uploads | grep -Eo "watch\?v=[^[:space:]\"\'\\]{11}" | uniq); do youtube-dl --title --no-overwrites http://youtube.com/"$i"; done }

AceSilvershadow · 2011-02-02 01:12:26 4
Get EXIF data from image with zenity
This is sample output - yours may be different.
-1

ans=$(zenity --title "Choose image:" --file-selection); exiftool -s ${ans} | zenity --width 800 --height 600 --text-info;

alejandrone · 2011-05-28 18:03:17 3
List the size (in human readable form) of all sub folders from the current location

All folders, human-readable, no subfolder, with a total. Even shorter.
This is sample output - yours may be different.
-1

du -sch *

anarcat · 2011-12-06 18:38:20 5
Delete empty directories only in present level
This is sample output - yours may be different.
-1

find ./ -maxdepth 1 -empty -type d -delete

bugmenot · 2012-08-09 12:58:46 7
Check in current directory to SVN with commical/terrible commit message. (Please don't actually run this command!)

DO NOT RUN this command! THIS WILL CHECK IN ALL CHANGES IN THE CURRENT DIRECTORY TO SUBVERSION WITH A TERRIBLE COMMIT MESSAGE!!!!!!!!!!!!!!! DON'T DO IT! YOU'VE BEEN WARNED! Show Sample Output
This is sample output - yours may be different.
```
I know what I am doing. Trust me.
```
-1

svn ci -m "$(curl -s http://whatthecommit.com | sed -n '/<p>/,/<\/p>/p' | sed '$d' | sed 's/<p>//')"

zbeekman · 2011-04-14 15:05:14 3

remove all carriage return of a given file (or input, if used with | ) and replace them with a space (or whatever character is after %s) Show Sample Output

-1

awk ' { printf ("%s ", $0)} END {printf ("\n") } ' FILE

bouktin · 2011-02-02 11:51:41 6

monitor when target host will be up
This is sample output - yours may be different.
-1

while true; do date; ssh <YOUR HOST HERE> "echo" && echo "HOST UP" && break; sleep 60; done

unixmonkey11685 · 2011-05-29 19:54:16 3
Copy public ssh Id to new host withtout bash redirection
This is sample output - yours may be different.
-1

cat .ssh/id_dsa.pub | ssh <HOST> "mkdir -p .ssh && tee -a .ssh/authorized_keys"

Valise · 2012-10-11 12:12:45 7
command line to drop all table from a databse
This is sample output - yours may be different.
-1

mysql -u uname dbname -e "show tables" | grep -v Tables_in | grep -v "+" | gawk '{print "drop table " $1 ";"}' | mysql -u uname dbname

dlamotte · 2009-02-05 14:53:09 31
quick and easy way of validating a date format of yyyy-mm-dd and returning a boolean

Quick and easy way of validating a date format of yyyy-mm-dd and returning a boolean, the regex can easily be upgraded to handle "in betweens" for mm dd or to validate other types of strings, ex. ip address. Boolean output could easily be piped into a condition for a more complete one-liner.
This is sample output - yours may be different.
-1

echo 2006-10-10 | grep -c '^[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]$'

rez0r · 2009-05-11 22:18:43 7
Mail text file (/tmp/scream-dump) contents from linux box with subject(scream-dump)
This is sample output - yours may be different.
-1

mail -s scream-dump user@example.com < /tmp/scream-dump

imsaar · 2009-12-01 21:04:22 3
Precide a bunch of files with a number in a pattern for example to indisperse a podcast backlock with more recent podcasts

This command adds the numbers 10, 12, 14 to a bunch of mp3's in the current working directory. You can then run the command replacing the inital i=10 with i=11 to add 11,13,15 in another directory then mv the files together and the first files interweave with the second group of files. I used this to weave a backlog of a podcast with other podcast so I didn't get sick of one while I was catching up. I started at 10 because printf blows up with 0 padded numbers 08 and 09 which kind of makes the printf command redundant as it was used to pad numbers 1 - 9 so they would come first and not get sorted incorrectly
This is sample output - yours may be different.
-1

i=10;for o in *.mp3; do i=$(printf "%02d" $i); mv $o $i$o; ((i = $i + 2)); done

bazzawill · 2009-04-13 12:33:52 7
Get length of array in zsh

Returns the index of the last element in the array. Show Sample Output
This is sample output - yours may be different.
```
%foo=(a b c d e)
%echo $foo[(I)$foo[-1]]
5
```
-1

$foo[(I)$foo[-1]]

andrew112358 · 2009-10-01 20:07:14 5
commit message generator - whatthecommit.com

Requires html2text. Print bad, but often funny commit messages from whatthecommit.com Show Sample Output
This is sample output - yours may be different.
```
I don't know what these changes are supposed to accomplish but somebody told me
to make them.
```
-1

curl -s http://whatthecommit.com | html2text | sed '$d'

zbeekman · 2011-04-14 16:51:53 4
List detached screen sessions

If you have many screen sessions, it can be difficult to find the id of the one you just detached from so you can re-attach using `screen -x -S ` Show Sample Output
This is sample output - yours may be different.
```
$ screen -ls | grep D
	16017.tiny	(Detached)
	22797.super	(Detached)
```
-1

screen -ls | grep D

peter4512 · 2012-03-01 14:05:40 4
Check the current price of Bitcoin (jq version, defines a function)

The only pre-requisite is jq (and curl, obviously). The other version used grep, but jq is much more suited to JSON parsing than that. Show Sample Output
This is sample output - yours may be different.
```
$ btc USD
1 BTC = 232.0986 USD
$ btc GBP
1 BTC = 149.4399 GBP
```
-1

btc() { echo "1 BTC = $(curl -s https://api.coindesk.com/v1/bpi/currentprice/$1.json | jq .bpi.\"$1\".rate | tr -d \"\"\") $1"; }

benjabean1 · 2015-09-19 02:49:30 18
run a command repeatedly

This runs a command continuously, restarting it if it exits. Sort of a poor man's daemontools. Useful for running servers from the command line instead of inittab.
This is sample output - yours may be different.
-1

doloop() { DONT=/tmp/do-run-run-run; while true; do touch $DONT; (sleep 30; rm $DONT;) & $1 ; if [ -e $DONT ]; then echo restarting too fast; return ; fi ; done }

evil_otto · 2009-02-21 02:11:18 5
Do an OR search using grep to look for more than one search term

This is a simple but useful command to search for multiple terms in a file at once. This prevents you from having to do mutliple grep's of the same file. Show Sample Output
This is sample output - yours may be different.
```
~> cat myFile.txt
hello
commandlinefu
how
are
you today?

Sincerely,
The World
~> grep -i 'hello\|world' myFile.txt
hello
The World
~>
```
-1

grep -i '<searchTerm>\|<someOtherSearchTerm>' <someFileName>

scifisamurai · 2009-05-11 23:05:54 8
Convert one's Java source file encoding

One of my friends committed his code in the encoding of GB2312, which broke the build job. I have to find his code and convert.
This is sample output - yours may be different.
-1

find . -name "*.java" -type f -perm +600 -print | xargs -I _ sh -c 'grep -q hexianmao _ && iconv -f gb2312 -t utf8 -o _ -c _ '

Sunng · 2011-03-08 13:02:25 7
Extract 2 copies of .tar.gz content

Sometimes you might need to have two copies of data that is in tar. You might unpack, and then copy, but if IO is slow, you might lower it by automatically writing it twice (or more times)
This is sample output - yours may be different.
-1

mkdir copy{1,2}; gzip -dc file.tar.gz | tee >( tar x -C copy1/ ) | tar x -C copy2/

depesz · 2011-04-14 17:02:05 5
Alternative for basename using grep to extract file name

fileName /path/to/file.ext quivalent to basename /path/to/file.ext Show Sample Output
This is sample output - yours may be different.
```
$ fileName /path/to/file.ext
file.ext
$ 
```
-1

fileName() { echo "$1" | grep -o "[^/]*$"; }

totti · 2011-08-19 18:16:22 3
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replace strings in file names

Uses vi style search / replace in bash to rename files. Works with regex's too (I use the following a script to fixup / shorten file names): # Remove complete parenthetical/bracket/brace phrases rename 's/$.*$//g' * rename 's/\[.*\]//g' * rename 's/\{.*\}//g' *

Find the package that installed a command

Flush DNS cache in MacOS 10.5

Multiline Search/Replace with Perl

from http://stackoverflow.com/questions/1030787/multiline-search-replace-with-perl added greedy trick in wildcard match (.*?) from http://www.troubleshooters.com/codecorn/littperl/perlreg.htm#Greedy

list services running (as root)

A quick way to list services running

grep (or anything else) many files with multiprocessor power

Parallel does not suffer from the risk of mixing of output that xargs suffers from. -j+0 will run as many jobs in parallel as you have cores. With parallel you only need -0 (and -print0) if your filenames contain a '\n'. Parallel is from https://savannah.nongnu.org/projects/parallel/

Watch several log files of different machines in a single multitail window on your own machine

this way you have the multitail with all its options running on your own machine with the tails of the two remote machines inside :)

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" }

Disable graphical login on Solaris

With a full installation of Solaris 10, the graphical login and desktop will start by default. This command will disable that feature. To enable it again use: /usr/dt/bin/dtconfig -e

Quickly analyze apache logs for top 25 most common IP addresses.

This command is much quicker than the alternative of "sort | uniq -c | sort -n".

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