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Commands tagged bash from sorted by
Terminal - Commands tagged bash - 722 results
define(){ local y="$@";curl -sA"Opera" "http://www.google.com/search?q=define:${y// /+}"|grep -Po '(?<=<li>)[^<]+'|nl|perl -MHTML::Entities -pe 'decode_entities($_)' 2>/dev/null;}
2010-01-29 05:01:11
User: eightmillion
Functions: grep perl
18

This function takes a word or a phrase as arguments and then fetches definitions using Google's "define" syntax. The "nl" and perl portion isn't strictly necessary. It just makes the output a bit more readable, but this also works:

define(){ local y="$@";curl -sA"Opera" "http://www.google.com/search?q=define:${y// /+}"|grep -Po '(?<=<li>)[^<]+';}

If your version of grep doesn't have perl compatible regex support, then you can use this version:

define(){ local y="$@";curl -sA"Opera" "http://www.google.com/search?q=define:${y// /+}"|grep -Eo '<li>[^<]+'|sed 's/<li>//g'|nl|perl -MHTML::Entities -pe 'decode_entities($_)' 2>/dev/null;}
a="www.commandlinefu.com";b="/index.php";for n in $(seq 1 7);do echo -en "GET $b HTTP/1.0\r\nHost: "$a"\r\n\r\n" |nc $a 80 2>&1 |grep Set-Cookie;done
2010-01-28 14:19:43
User: vlan7
Functions: echo grep seq
Tags: bash cookies
3

The loop is to compare cookies. You can remove it...

Maybe you wanna use curl...

curl www.commandlinefu.com/index.php -s0 -I | grep "Set-Cookie"
svn add $(svn st|grep ^\?|cut -c2-)
2010-01-28 09:48:46
User: inkel
Functions: cut grep
Tags: bash svn grep cut
0

This version makes uses of Bash shell expansion, so it might not work in all other shells.

<ALT> .
<CTRL+w>
<ALT> <BACKSPACE>
2010-01-27 19:52:51
User: wincus
2

hit BACKSPACE more than once to delete more words

!$
2010-01-24 17:59:52
User: ringlerun
9

for example if you did a:

ls -la /bin/ls

then

ls !$

is equivalent to doing a

ls /bin/ls
<ALT> .
<ESC> .
removedir(){ read -p "Delete the current directory $PWD ? " human;if [ "$human" = "yes" ]; then [ -z "${PWD##*/}" ] && { echo "$PWD not set" >&2;return 1;}; rm -Rf ../"${PWD##*/}"/ && cd ..; else echo "I'm watching you" | pv -qL 10; fi; }
echo -e "swap=me\n1=2"|sed 's/\(.*\)=\(.*\)/\2=\1/g'
alias PS1="man bash | sed -n '/ASCII bell/,/end a sequence/p'"
2010-01-15 23:39:28
User: haivu
Functions: alias
Tags: bash prompt ps1
3

I use this command (PS1) to show a list bash prompt's special characters. I tested it against A flavor of Red Hat Linux and Mac OS X

exipick -zi | xargs exim -Mrm
for i in `mailq | awk '$6 ~ /^frozen$/ {print $3}'`; do exim -Mrm $i; done
2010-01-13 21:28:45
User: rjamestaylor
Functions: awk
Tags: bash awk exim
-2

Although Exim will purge frozen (undeliverable) messages over time, the command "exim -Mrm #id#" where #id# is a particular message ID will purge a message immediately. Being lazy, I don't want to type the command for each frozen message, so I wrote the one-liner to do it for me.

echo 'mkcd() { mkdir -p "$@" && cd "$_"; }' >> ~/.bashrc
2010-01-13 09:37:56
User: phaidros
Functions: cd echo mkdir
-4

combines mkdir and cd

added quotes around $_, thanx to flatcap!

for file in $(seq -f '%03.f' 1 $TOTAL ); do echo "($file/$TOTAL)"; curl -f -O http://domain.com/Name_$file.ext; done
2010-01-12 15:23:44
User: nordri
Functions: echo file seq
-4

With counter format [001, 002, ..., 999] , nice with pictures or wallpapers collections.

wget http://domain.com/file{1..100}
find /path/to/images -name '*.JPG' -exec bash -c 'mv "$1" "${1/%.JPG/.jpg}"' -- {} \;
2010-01-07 15:41:17
User: sorpigal
Functions: bash find
Tags: bash find mv
7

Recursively rename .JPG to .jpg using standard find and mv. It's generally better to use a standard tool if doing so is not much more difficult.

<alt+50>-
2010-01-07 15:32:47
User: kobayashison
-3

In bash, by pressing ALT+n and then a character x, x will be printed n times

I know is not the same as the original command, but is correlated.

for k in `git branch|sed s/^..//`;do echo -e `git log -1 --pretty=format:"%Cgreen%ci %Cblue%cr%Creset" "$k"`\\t"$k";done|sort
sed -i.bak 's/old/new/g' file
2010-01-06 17:04:05
User: deltaray
Functions: sed
Tags: bash sed
2

sed already has an option for editing files in place and making backup copies of the old file. -i will edit a file in place and if you give it an argument, it will make a backup file using that string as an extension.

read enterKey
2009-12-29 00:18:32
User: bbmarek
Functions: read
Tags: bash read
-4

how to finish command or script without any output

cat | gcc -x c -o a.out - && ./a.out && rm a.out
2009-12-27 04:37:24
User: dgalling
Functions: c++ cat gcc rm
-2

This should work on any unix platform running bash. Just type the program into cat and give it a ^D when you're done, at which time it will compile, run, and remove the program. Obviously, you can run it without the "rm a.out" if you'd like to keep the binary. If you want to keep the source, well, you might as well just write it in vi or emacs first then.

php -i | grep php.ini
2009-12-23 15:52:20
User: jemmille
Functions: grep
Tags: bash grep PHP
5

Quick and easy way to find out which php.ini file is being used. Especially useful if you just need to find the location of the file for editing purposes.

vim -n -es -c 'g/# CommandParse/+2,/^\s\+esac/-1 d p | % d | put p | %<' -c 'g/^\([-+]\+[^)]\+\))/,/^\(\s\+[^- \t#]\|^$\)/-1 p' -c 'q!' $0
2009-12-19 08:32:00
User: syladmin
Functions: vim
0

A really fun vim oneliner for auto documenting your option's parsing in your script.

# print the text embeded in the case that parse options from command line.

# the block is matched with the marker 'CommandParse' in comment, until 'esac'

extract_cmdl_options()

{

# use vim for parsing:

# 1st grep the case block and copy in register @p + unindent in the buffer of the file itself

# 2nd filter lines which start with --opt or +opt and keep comment on hte following lines until an empty line

# 3rd discard changes in the buffer and quit

vim -n -es -c 'g/# CommandParse/+2,/^\s\+esac/-1 d p | % d | put p | %

-c 'g/^\([-+]\+[^)]\+\))/,/^\(\s\+[^- \t#]\|^$\)/-1 p' \

-c 'q!' $0

}

example code:http://snipplr.com/view/25059/display-embeded-comments-for-every-opt-usefull-for-auto-documenting-your-script/