A chronological documentation test project, nothing serious, really!
The script below will take a filename eg: DSCN0001.JPG, extract the “Image Created” metadata and rename the original file to something like 2006-03-23_DSCN00001.JPG and it will do it automatically for you. #! /bin/shfunction usage() {if [ $# -ne 1 ]; then echo “ExifDater – version 0.1 – March 23 2006” echo “El-Lotso ” […]
This is at short script to strip/remove comments from config files #!/bin/bash # Code to cat a config file removing all comments and blank lines. grep -vh ‘^[[:space:]]*#’ “$@” | grep -v ‘^$’ Usage: ./confcat.sh /etc/make.conf Alternativ is to use sed cat filename | sed -e ‘s/#.*//;/^\s*$/d’ “$@” This also strips comments at the end […]
Using -L on the command line with SSh will bind a remote port to a local one. For instance, if you wanted to tunnel the port for a remote desktop (usually 5901) to a local machine, you would type the following ssh -L 5901:localhost:5901 remote_ip You could then access your remote desktop by connecting your […]
While a few commands, such as ‘cd’ are built directly into bash; many of the most important commands come from coreutils, a GNU package containing over a hundred commands. Some are the well known commands such as ‘ls’, ‘mv’ and ‘cat’. While there are some more obscure ones that are not always discovered because there […]
Sometime it is useful to determine if a script is being run as root or not. A simple check can be performed at the start of a script before anything important is done. The bit of code below will do this. # Check the script is being run by root if [ “$(id -u)” != […]