LinuxQuestions.org - Blog Entries

binfind - Search for executable files based from PATH variable.

Posted 09-04-2012 at 09:51 PM by konsolebox
Updated 05-27-2018 at 03:11 PM by konsolebox

I've been using this utility quite long enough already. I use this to search for executable files based from the path values saved in the PATH variable.

Code:

#!/bin/bash

shopt -s extglob

function main {
	# check bash version

	[[ BASH_VERSINFO -ge 3 ]] || {
		echo "This script requires bash version 3.0 or newer."
		return 1
	}

	# check arguments

	[[ $# -eq 0 || "$1"

...

konsolebox

Senior Member

Posted in Howtos

Views 1672 Comments 0 konsolebox is offline

uuidfstab - Convert fstab contents to a format that uses UUID instead of /dev paths.

Posted 09-04-2012 at 09:09 PM by konsolebox
Updated 05-27-2018 at 03:10 PM by konsolebox

Tags bash, fstab, script, uuid

This script helps a user or admin to automatically convert items in fstab so that they would use UUIDs instead.

uuidfstab[.sh]

Code:

#!/bin/bash

function error {
	echo "$1" >&2
	exit 1
}

function show_usage_and_exit {
	error "Usage: $0 <path_to_fstab_file> [<new_fstab_file>]"
}

function process {
	local FSTABFILE=$1 NEWFSTABFILE=$2 LINE DEVICE TEMPFILE

...

konsolebox

Senior Member

Posted in Howtos

Views 2125 Comments 0 konsolebox is offline

Pseudo-template noob hack that may apply for several situations

Posted 04-12-2012 at 04:10 PM by the dsc (linux-related notes)
Updated 04-12-2012 at 04:14 PM by the dsc

Tags bash, gimp, mypaint, script, template

There's a painting software, "mypaint", which is very nice, but it does not support templates, at least not yet.

I've created a template (just a "blank" file with the correct resolution and whatnot) on GIMP, saved it as "ora", but instead of opening this file manually every time, and remembering to save it with a new name in order to not overwrite the template, I came up with a script that will create a new name automatically, with no risk of overwriting...

the dsc

Member

Posted in Uncategorized

Views 11898 Comments 2 the dsc is offline

Bash functions to list and kill or send signals to process trees

Posted 03-31-2012 at 11:54 PM by konsolebox
Updated 05-27-2018 at 03:11 PM by konsolebox

Tags bash, process, script

These functions can be used in scripts or interactive shells to manipulate process trees. At least bash version 3.0 is needed. May also work with some earlier versions.

kill_tree - Creates a list of processes based from a parent process ID first then sends the signal to all of them synchronously.

kill_tree_2 - Same as killtree but it doesn't create a list first. It immediately kills processes as it goes through every level.

kill_tree_3 - This version...

konsolebox

Senior Member

Posted in Howtos

Views 4311 Comments 0 konsolebox is offline

Handling all file names safely in Bash

Posted 02-11-2012 at 12:09 PM by Nominal Animal
Updated 04-16-2012 at 02:41 AM by Nominal Animal (Fuller fixes.)

Tags bash, filename, nul

In Linux, each file or directory name (or more generally, pathname component) is just a string of bytes. It always ends with the C end-of-string mark, ASCII NUL: a zero. Value 47, ASCII /, is also reserved for use as a separator between pathnames.

Bash can read ASCII NUL separated data using read -d "" variable. It will, however, remove leading and trailing characters that match IFS, and return false (nonzero status) if the input does not have a final NUL. This applies to...

Nominal Animal

Senior Member

Posted in Uncategorized

Views 2256 Comments 0 Nominal Animal is offline

Page 7 of 9

« First