how to use temporary files?

nadeemr · 06-10-2007, 09:26 PM

my dilema is that:
i am trying to write a shell script 'shortcut' that does the following:

[nruhomutally@dblsys bin]$./shortcut -a myls ls -lart # Associates the tag 'myls' with the command 'ls -lart'
[nruhomutally@dblsys bin]$./shortcut myls # runs 'ls -lart'
[nruhomutally@dblsys bin]$./shortcut -d myls
OK, shortcut 'myls' deleted
[nruhomutally@dblsys bin]$
[nruhomutally@dblsys bin]$.shortcut -l myls
Shortcut 'myls' = ls -lart
[nruhomutally@dblsys bin]$

wjevans_7d1@yahoo.co · 06-11-2007, 12:02 AM

So is your question about temporary files, or about how to write the script?

If your question is about temporary files, what is your question?

If your question is about how to write the script, and you don't know much about shell scripting, get cracking and learn it! (grins) Google for

Code:

bash tutorial

Otherwise, maybe you want to post the script you have written so far and ask a specific question about it.

Hope this helps you get started.

St.Jimmy · 06-11-2007, 12:14 AM

you should just be able to use alias.

nadeemr · 06-11-2007, 06:31 AM

i would need to write a temporary file that outputs :

[nruhomutally@dblsys bin]$./shortcut -a myls ls -lart # Associates the tag 'myls' with the command 'ls -lart'
[nruhomutally@dblsys bin]$./shortcut myls # runs 'ls -lart'
[nruhomutally@dblsys bin]$./shortcut -d myls
OK, shortcut 'myls' deleted
[nruhomutally@dblsys bin]$
[nruhomutally@dblsys bin]$.shortcut -l myls
Shortcut 'myls' = ls -lart
[nruhomutally@dblsys bin]$

any help would be much appreciated!

St.Jimmy · 06-11-2007, 01:39 PM

There is mo reason to write that script,, AFAIK, just use alias.

nadeemr · 06-11-2007, 10:10 PM

Quote:

Originally Posted by St.Jimmy

There is mo reason to write that script,, AFAIK, just use alias.

Can u be more specific with the use of alias!?

St.Jimmy · 06-11-2007, 11:23 PM

alias rm="rm -rf" //changes every instance of rm to rm -rf
alias -a //removes all aliases
alias -t //lists all tracked aliases
alias -x //lists all exported aliases
unalias rm //removes the alias above

nadeemr · 06-12-2007, 07:29 AM

Quote:

Originally Posted by St.Jimmy

alias rm="rm -rf" //changes every instance of rm to rm -rf
alias -a //removes all aliases
alias -t //lists all tracked aliases
alias -x //lists all exported aliases
unalias rm //removes the alias above

ok what is this code suppose to do...coz i tried it and its not working

wjevans_7d1@yahoo.co · 06-12-2007, 08:49 AM

They don't work for me either. Some of them (not all) work better in ksh, but I'll bet you're using bash.

Try these:

Code:

alias rm="rm -rf" # changes every instance of rm to rm -rf
alias             # lists   all aliases
unalias -a        # removes all aliases
unalias rm        # removes the alias for rm

nadeemr · 06-12-2007, 12:02 PM

Quote:

Originally Posted by wjevans_7d1@yahoo.co

They don't work for me either. Some of them (not all) work better in ksh, but I'll bet you're using bash.

Try these:

Code:

alias rm="rm -rf" # changes every instance of rm to rm -rf
alias             # lists   all aliases
unalias -a        # removes all aliases
unalias rm        # removes the alias for rm

yes am using bash!

custangro · 06-12-2007, 12:18 PM

edit your .bashrc file in your home directory and add an alias:

Code:

cd ~
vi .bashrc

Now you need to add this line under the other aliases:

Code:

alias myls='ls -lart'

Write and quit this file (:wq) and now you need to re read this file in order to use it:

Code:

source .bashrc

now you can just type: myls and it should work like a regular command.

nadeemr · 06-14-2007, 03:52 PM

Quote:

Originally Posted by custangro

edit your .bashrc file in your home directory and add an alias:

Code:

cd ~
vi .bashrc

Now you need to add this line under the other aliases:

Code:

alias myls='ls -lart'

Write and quit this file (:wq) and now you need to re read this file in order to use it:

Code:

source .bashrc

now you can just type: myls and it should work like a regular command.

it doesn't seems to work at all for me...please be more precise thank you

wjevans_7d1@yahoo.co · 06-15-2007, 11:45 AM

After you've made custangro's recommended changes to the .bashrc file in your home directory and you've typed source .bashrc, when you type myls, what error message do you get?