Bash-script basic level

oldieGoldie · 03-10-2010, 03:02 AM

Hi there
I´m like my alias a retired person, and Its never to late to learn something, I´ve just installed Ubuntu and found a tutorial online about bash-script.Manage some, but I cant to this one:

[Write a script that makes file executable and writes a message that it has been done.
If I run the command > <scriptName> <fileName> , then the file fileName should be executable and then it should indicate that fileName have been executable.]

I´ve read man pages up-n-down and search the web, and I think I should let the script use chmod and ls -l, but I cant get the hole picture here. Actually I have nothing to show up, so I hope someone could help me with some ideas or a soloution - just to the how it should look.

This is my first post, ever, at a forum like this, so please be nice if I didnt follow any rules here, I dont know if you even will answer this post, but at least give me some clues, a skeleton-code ti be based on.

Thank you!

catkin · 03-10-2010, 03:14 AM

When writing bash scripts it is often helpful to do the things that you want the script to do manually, at the command prompt.

At the command line, how would you:

make a file executable?
check that you have made it executable?

You have already mentioned the chmod and ls commands as being useful.

Once you have found the commands you want the script to run, edit them into a file:

Code:

!/bin/bash
<first command>
<second command>

Then make the file executable (you know how to do that!) and run it with ./<script file name> or bash <script file name>.

AnanthaP · 03-10-2010, 05:11 AM

# assume $1 contains the name of the file to be made as an executable, then the script

Code:

chmod +x $1
echo $1 is made as an executable

OK