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Commands tagged bash from sorted by
Terminal - Commands tagged bash - 724 results
fn() { find . -iname "*$1*" -print; }
2014-07-15 05:30:59
User: suprjami
Functions: find

A simple bash function to the find command. I use this much more than find itself.

cut -f 2 -d ':' oclHashcat.pot | egrep -oi '[a-z]{1,20}' | sort | uniq > base.pot
perl -M URI::Escape -lne 'print uri_unescape($_)'
env PS4=' ${BASH_SOURCE:-0$}:${LINENO}(${FUNCNAME[0]}) ' sh -x /etc/profile
watch -n10 --no-title "w3m http://www.livescore.com/ |egrep 'live [0-9H]+[^ ]'"
2014-06-12 21:44:26
Functions: watch
Tags: bash livescore

World Cup Live Score of the ongoing match.

Alternative to have the live score with the match statistics:

watch -n10 --no-title "w3m http://www.livescore.com/ |awk '/live [0-9H]+[^ ]/,/red cards/'"
F=136; [[ $(($F % 4)) == 0 ]] && for i in $(seq 1 $(($F/4))); do echo -n $(($F-2*($i-1))),$((2*$i-1)),$((2*$i)),$(($F-2*$i+1)),; done | sed 's/,$/\n/' || echo "Make F a multiple of 4."
2014-06-11 01:21:08
User: Kayvlim
Functions: echo sed seq

Useful if you don't have at hand the ability to automatically create a booklet, but still want to.

F is the number of pages to print. It *must* be a multiple of 4; append extra blank pages if needed.

In evince, these are the steps to print it, adapted from https://help.gnome.org/users/evince/stable/duplex-npage.html.en :

1) Click File ▸ Print.

2) Choose the General tab.

Under Range, choose Pages.

Type the numbers of the pages in this order (this is what this one-liner does for you):

n, 1, 2, n-1, n-2, 3, 4, n-3, n-4, 5, 6, n-5, n-6, 7, 8, n-7, n-8, 9, 10, n-9, n-10, 11, 12, n-11...

...until you have typed n-number of pages.

3) Choose the Page Setup tab.

- Assuming a duplex printer:

Under Layout, in the Two-side menu, select Short Edge (Flip).

- If you can only print on one side, you have to print twice, one for the odd pages and one for the even pages.

In the Pages per side option, select 2.

In the Page ordering menu, select Left to right.

4) Click Print.

sed -i 's/^.*?].*?:\s//g' skype-chat-log.txt
2014-05-26 07:48:36
Functions: sed

Regular expression search pattern to remove the Datetime and Name when you paste from skype chat into your text editor

From this Gist:


MYURL=http://test.example.com ; awk -F/ '{ print $3 }' <<< $MYURL | awk -F. '{ if ( $(NF-1) == "co" || $(NF-1) == "com" ) printf $(NF-2)"."; print $(NF-1)"."$(NF); }'
2014-05-26 07:31:40
User: snafu
Functions: awk printf
Tags: bash url domain

Extracts domain and subdomain from given URl. See examples.

alias pp='python -mjson.tool|pygmentize -l js'
2014-05-22 10:29:44
User: wires
Functions: alias
Tags: bash json

Leave out pygmentize or `pip install pygments` first.

psql -X -A -t -c "SELECT version();"
2014-05-01 18:10:20
User: malathion

Without using a pipe.

-X ignores the user's .psqlrc configuration file

-A sets un-aligned table output mode

-t prints rows only (no headers or footers)

psql -h <SERVER NAME HERE> -t -c 'SELECT version();' |head -1
rtfm() { help $@ || man $@ || xdg-open "http://www.google.com/search?q=$@"; }
2014-04-25 04:17:03
User: KlfJoat
Functions: man

Same as the other rtfm's, but using the more correct xdg-open instead of $BROWSER.

I can't find a way to open info only if the term exists, so it stays out of my version.

openssl rand -hex 6 | sed 's/\(..\)/:\1/g; s/^.\(.\)[0-3]/\12/; s/^.\(.\)[4-7]/\16/; s/^.\(.\)[89ab]/\1a/; s/^.\(.\)[cdef]/\1e/'
2014-04-23 21:43:38
User: phil_m
Functions: sed
Tags: Network bash mac

The sed script ensures that the "random" MAC address is unicast (bit 0 of first byte == 0) and local (bit 1 of first byte == 1)

tree /dev/disk
say() { wget -q -U Mozilla -O output.mp3 "http://translate.google.com/translate_tts?ie=UTF-8&tl=en&q=$1" open output.mp3 &>/dev/null || xdg-open output.mp3 &>/dev/null }
for id in `ls -1 ~/.ssh | grep -v "authorized\|known_hosts\|config\|\."` ; do echo -n "$id: " ; ssh-keygen -l -f .ssh/$id ; done
2014-04-16 14:12:20
User: drockney
Functions: echo grep id ssh-keygen

Find all private keys and dump their fingerprints.

rename 's/\.sh//' ./*
2014-04-02 16:33:25
User: abhikeny
Functions: rename

The 'rename' command with the first argument as "'s/\.//'" and the second argument as "" will remove the specified extension from the filenames.

while read i; do [ ${#i} -gt 72 ] && echo "$i"; done < /path/to/file
2014-03-20 12:27:06
User: flatcap
Functions: echo read

Filter out lines of input that contain 72, or fewer, characters.

This uses bash only. ${#i} is the number of characters in variable i.

psql -h <SERVER NAME HERE> -c 'SELECT version();' | grep -v 'version\|---\|row\|^ *$' | sed 's/^\s*//'
2014-03-17 18:36:40
User: pnelsonsr
Functions: grep sed

In a multiple PostgreSQL server environment knowing the servers version can be important. Note that psql --version returns just the local psql apps version which may not be what you want. This command dumps the PostgreSQL servers version out to one line. You may need to add more command line options to the psql command for your connection environment.

alias ...='while read line; do echo -n "."; done && echo ""'
for i in `sudo /sbin/fdisk -l |grep Disk |grep dev |awk '{ print $2 }' |sed s/://g` ; do sudo /usr/bin/dd if=/dev/urandom of=$i bs=8M & done
2014-03-16 12:04:59
User: aimana007
Functions: awk grep sed sudo
Tags: bash Linux

This command will use the fdisk utility to find all block devices on your system, and overwrite them with data from the /dev/urandom non-blocking random number generator.

CAUTION: This will irrevocably erase EVERY SINGLE physical block storage device visible to the fdisk utility, including plugged USB devices, RAID sets, LVM, etc.

wmic OS get OSArchitecture /value | grep -Eo '[^=]*$'
2014-03-15 02:04:08
User: lowjax
Functions: get grep

Using "wmic get * /value" within any Cygwin shell will return lots of Win/Dos newline junk ie "^M$" at the end of found value line, two lines ("$" Unix newline) above, and three below. This makes storing and or evaluating wmic queries as variables a pain. The method i suggest strips the mentioned junk, only returns the value after "OSArchitecture=", and includes only one Unix style newline. Other methods using sed|awk|cut can only handle the output of wmic cleanly when piped or using multiple sed statements.

wmic OS get OSArchitecture /value | sed 's/\r//g;s/^M$//;/^$/d;s/.*=//'


wmic OS get OSArchitecture /value | grep -Eo '[^=]*$'

a much cleaner and slightly less costly alternative.

bashrc-reload() { builtin unalias -a; builtin unset -f $(builtin declare -F | sed 's/^.*declare[[:blank:]]\+-f[[:blank:]]\+//'); . ~/.bashrc; }
2014-03-02 14:24:18
User: Xk2c
Functions: sed unalias unset

Simply sourcing .bashrc does not function correctly when you edit it and change an alias for a function or the other way round with the *same name*.

I therefor use this function. Prior to re-sourcing .bashrc it unsets all aliases and functions.

tput rmam
2014-02-26 07:06:37
User: kennyld
Functions: tput
Tags: bash ksh
tput rmam

will disable line wrapping so that long lines are truncated to width of the terminal ($COLUMNS).

tput smam

will re-enable wrapping.

I've always used tput in bash scripts but I guess it works on the command line too.

Doesn't work in all terminals.

See http://www.gnu.org/software/termutils/manual/termutils-2.0/html_chapter/tput_1.html