Command Line Shortcuts


How would I create command line shortcuts in Linux.  For example I would be in a shell at the command line and to view my directories and files in /home/user(user being me) I would type in ls -al which would list all files in alphabetical order.  Now what I would like to do is type in l(lower case L) and receive the same output as ls -al.

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periwinkleConnect With a Mentor Commented:
open a shell at the console or via ssh.
vi .bashrc
use 'i' to insert and type the following line:
alias l 'ls -al'
press the esc key to get out of insert mode
type the following to write and quit:
exit your command shell, and restart it to see the change when you log in again.
you could do this via an alias, but I would urge you to be careful to not overwrite important commands, or to set things up in a way that you forget the underlying command.  To set this alias, you'd do the following (via a login script or from the command line):

alias l 'ls -al'
ibu1System AdministratorCommented:
Do this exactly
vi /usr/bin l
ls -al

save file
chmod 777 l

Now when u type l it will work as ls -al
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Agree with periwinkle. To make it permanent save the alias command to $HOME/.bashrc file. I assume You are using bash as Your shell... Also remember that aliases are not recursive, so following is wrong
alias ll='ls -la'
alias lf='ll -F' # will not work, ll is unknown here

I assume you meant to write

vi /usr/bin/l

That's not a good idea, as you should not pollute /usr/bin with your own scripts.  Also doing a chmod 777 is a bad idea as it means anyone can delete,edit the file.

aliases or functions are the way to go.
palazziniAuthor Commented:
Thanks for the quick response everyone.  I am talking about the bash shell.  I'm using Ubuntu 6.06.  What I'm looking for are step by step instructions to do this request.   For example to create the aliases script or function do this:

Step 1-Start at the command line here.
Step 2-Open text editor(vi, pico) and type the following.  
Step 3-Save to this path.
Step 4-etc, etc, etc,
This way I will create the command line short-cut without making any mistakes.  The idea is if I can create this command line short cut there are alot more I would like to do.  I just need to be instructed on how to correctly create the commands.
Once again thanks for being there.  This is my favorite site for getting IT help.

Yes, start the command line terminal
 echo "alias l='ls -la'" >> $HOME/.bashrc
every newly opened shell should have the alias set
Alternative: if You can handle editing files, open .bashrc (in Your home directory) and add following line
alias l='ls -la'
palazziniAuthor Commented:
That's what I needed.  Thanks everyone for the input.
glad to have helped - ravenpl's solution to add the line via echo and redirection is simple and elegant, too...
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