Share your best command line scripts

mfillpot

The name says it all. Please share your best command line scripts and explain their use.

mfillpot

alias IPADDRESSES="ip addr|grep 192;curl -s http://checkip.dyndns.org/ | grep -o '[[:digit:].]\+'"

This command sets up an alias command to display your internal ip address(es) and display your external ip address using dyndns.

You only need to supplement the 192 with the first octet of you internal network subnet.

adrian

Ubucleaner

melik

#!/bin/bash
IP=$(curl http://www.slurpware.org)
echo $IP
exit 0

Simple external IP checker.

mfillpot

Ubucleaner seems to be a good tool for ubuntu users, thank you for sharing it.

Also the ip script is good, it shows that there are mutliple ways in Linux to accomplish a single task.

weibullguy

PackManUtil for managing package installation on a Cross Linux from Scratch system.

adrian

#! /bin/bash

exe=`basename $1 .c`
gcc $1 -o $exe

Will compile source.c and the output file will be source.
I use it along with a bash alias.

magma_camel

Script to upload your screenshot to my screenshot gallery

http://kporter.homelinux.com/~kaleb/screenup.sh

usage:

./screenup.sh filename.jpg

script to set your wallpaper no matter what

http://kporter.homelinux.com/~kaleb/setwall.sh

usage:

./setwall.sh filename.jpg

david_e

Here is mine:

http://omploader.org/vMXE0Zw/permfix.sh

this script is used to change all the permissions on a directory tree: it is possible to set different permissions for regular files and folders. So for example I use it for my "Music" folder:

./permfix.sh -f 640 -d 750 $HOME/Music

in this way I have the right permissions for the files and folders (the latter need a +x for "browse permission").

There is also a "pretend mode" in which the scripts just prints what it would have done in "standard mode" without actually touching any file.

Use it at your own risk.

LegacyUser

#!/bin/bash
#test ulimit
me=/tmp/me
doit ()
{
/bin/sh $me
}
echo foo ; doit
exit 0

sam.albuquerque

http://www.tuxopia.net/Script_to_Download_lyrics_from_command_line

My Script to Download Lyrics in Command Line as Plain Text.

proofreaders

filenames="file1 file2 file3 file4 file5 file6 file7"


target="everything" # target filename for full ZIP archive + .zip
searchdb="search-database" # target filename for search db ZIP archive

newestfile="$(ls -t *xml | head -1)"

if [ $newestfile -nt $target.zip ] ; then
# time to rebuild the archive
zip $target *xml
fi

gomer

Here are a couple I use at work a lot.

This one will identify the manufacturer of a NIC card based on the most current published list of OUIs. It takes the MAC address as the argument and is forgiving of the format (e.g. ifconfig, windows ipconfig, or cisco style)

#!/bin/bash

OUI=$(echo ${1//[:.-]/} | tr "[a-f]" "[A-F]" | egrep -o "^[0-9A-F]{6}")
lynx -dump standards.ieee.org/regauth/oui/oui.txt | grep $OUI


Here's one I use to mount the file system inside my Virtual Box .vdi disk image when I need to grab a file, but do not need to otherwise fireup the virtual machine:

#!/bin/bash

if [ -f ~/.VirtualBox/VDI/$1 ]
then
MOUNT=`sudo mount -o loop,umask=0000,offset=0x$(hd -n 1000000 ~/.VirtualBox/VDI/$1 | grep "eb 52 90 4e 54 46 53" | cut -c 1-8) ~/.VirtualBox/VDI/$1 /mnt 2>&1`
if [ "$?" -ne "0" ]
then
echo -e "Mount Failed!!!!\n"
OUT=`echo $MOUNT | grep "indicates unclean shutdown" 2>&1`
if [ "$?" -eq "0" ]
then
echo "NTFS was not cleanly unmounted"
fi
sudo losetup -d /dev/loop0
exit 0
fi
else
echo "$1 - files not found"
fi