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Commands by kaedenn

Terminal - Commands by kaedenn - 5 results

!<command>

2011-08-16 18:37:18

User: kaedenn

Up
Down

Quickly re-execute a recent command in bash

! will expand to the last time you ran , options and all. It's a nicer alternative to ^R for simple cases, and it's quite helpful for those long commands you run every now and then and haven't made aliases or functions for. It's similar to command 3966, in some sense.

sedit() { cp "$*"{,.bk}; which $EDITOR > /dev/null && $EDITOR "$*" || vim "$*"; }

2011-08-16 18:28:22

User: kaedenn

Functions: cp vim which

-6

Up
Down

Backup a file before editing it.

Some people put spaces in filenames. Others have an $EDITOR environment variable set. This defaults to vim, but you can use whatever you wish: emacs, nano, ed, butterflies, etc.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

svn up -rREV file

2011-03-29 10:57:39

User: kaedenn

Tags: svn

Up
Down

Revert an SVN file to previous revision

Kudos to xakon.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sed 's/^\s*//;s/\s*$//' -i file

2010-08-24 05:03:48

User: kaedenn

Functions: sed

Tags: sed

Up
Down

delete all leading and trailing whitespace from each line in file

Sometimes those files have more than just spaces and tabs around them. Plus, this is just a little shorter.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

leapyear() { if [ $[$1 % 4] -eq 0 ] && [ $[$1 % 100] -ne 0 ] || [ $[$1 % 400] -eq 0 ]; then echo $1' is a leap year!'; else echo $1' is not a leap year.'; fi; }

2010-03-30 17:19:20

User: kaedenn

Functions: echo

Tags: echo test

-2

Up
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Leap year calculation

Tested on bash, and follows all the rules about leap years.