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marcdjay

New Member

Registered: 2012-09-20

Posts: 1

Bash script to create bash scripts

Hi all!

New #!'er and newish linux user here. Just starting to learn a bit more about bash scripting and I've found it tedious creating the file, opening it to edit, chmod'ing it then executing it with ./.

So, I decided to knock up a quick script that will create a /bin folder in my home dir then add it to the $PATH, take the 1st argument and create a file with that name, chmod it to allow execution and then open it up in your fave editor (yes im a nano man, what of it!)

Haven't tested it yet as I'm at work on my Windows box but thought I'd share it anyway and see what you think / show me where I've gone wrong etc

#!/bin/bash

#==========================================================================
# TITLE: mksh (MaKe SHell)
# AUTHOR: MarcDJay
#
# USAGE: mksh <scriptname>
# DESCRIPTION:  Creates a file with given argument, copies it to ~/bin,
#                makes the file executable and then opens it in your editor
#                of choice.
#==========================================================================

# Edit the following and replace with your favourite editor
EDITOR=changeme

# Checks to see if the command already exists, and if it does quits.
which $1 | $(ishere)
if $ISHERE [ != "" ]
    echo "Command already exists! Terminating..."
    echo ""
    sleep 1s
    exit
fi

# Check if ~/bin exists, and if not, create it & add to PATH
if [ ! -d "~/bin" ]; then
    mkdir ~/bin
    echo "PATH="$PATH:$HOME/bin"" >> ~/.profile
fi

# Creates the file to become the script
touch $HOME/bin/$1
echo "#!/bin/bash" >> $1

# Makes the file executable
chmod +x $HOME/bin/$1

# Opens file in your editor
$EDITOR $HOME/bin/$1
exit

wuxmedia

wookiee madclaw

From: Normal for Normandy

Registered: 2012-03-09

Posts: 842

Website

Re: Bash script to create bash scripts

I think you've just cracked the old chicken and egg scenario..!
great idea - might even start trying bash now.
thanks.

pidsley

#! Die Hard

Registered: 2012-05-23

Posts: 1,348

Re: Bash script to create bash scripts

Looks a little like rhowaldt's @script: http://crunchbanglinux.org/forums/topic/13759/script/

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"Ignorance more frequently begets confidence than does knowledge" -- Charles Darwin

rhowaldt

#!*$%:)

Registered: 2011-03-09

Posts: 4,396

Re: Bash script to create bash scripts

^ it is indeed exactly the same principle.

nice script DJ Marc! makes a lot of sense to create this indeed.

stat

Member

Registered: 2012-06-15

Posts: 40

Re: Bash script to create bash scripts

Great idea. I have always used a template that I made in geany but often forget to open the template and eventually get pissed at myself because I finish the script and realize I left out the summary, etc.  have to open the template and copy it all back in etc.  A script to write scripts is just crazy enough that my addled brain will remember it.  As they said in Blazing Saddles "stand back, I think he's just crazy enough to do it".

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