[SOLVED] scope issues in sh/bash...

fflarex · 2008-09-26 20:04:46

So I'm writing a shell script (script1). One of the things I need to do in script1 is already accomplished in a script I previously wrote (script2), however it doesn't have access to any of the functions inside script1. Is there a way to either: 1. make script2 a function of script1, or 2. export a function of script1 to the wider environment?

I realize this is very confusing, so if it needs clarifying just say so. I didn't want to bog the post down with unnecessary details about what exactly each script does and such.

Last edited by fflarex (2008-09-27 07:34:48)

Procyon · 2008-09-26 20:14:22

Posting the scripts or some kind of similar smaller example is always nice.

Have you looked into 'export'?

Profjim · 2008-09-26 20:41:32

Haven't read your scripts, sorry. But a quick thought: why not do this:

/usr/local/lib/my_lib:
function my_function() {
...
}

/usr/local/bin/my_script1:
source /usr/local/lib/my_lib
...use my_function...

/usr/local/bin/my_script2:
source /usr/local/lib/my_lib
...use my_function...

Dieter@be · 2008-09-26 20:42:10

Make 1 file a 'library' file with functions and whatever, source that file from other files that perform logic.

fflarex · 2008-09-26 20:47:15

Okay, actually I just figured out a very tricky way to accomplish this.

I can redefine a script as a function of another script like so:

function mpd-on-change {
    bash <(cat ~/bin/mpd-on-change) $*
}

EDIT: Dang, this didn't actually work. Something is wrong with passing on the arguments.

Last edited by fflarex (2008-09-26 20:59:31)

Dieter@be · 2008-09-26 21:05:12

you probably mean

function mpd-on-change {
    bash ~/bin/mpd-on-change $*
}

but you're making it too complicated imo.. what's wrong with profjim's and mine advice?

fflarex · 2008-09-26 21:08:28

The problem is that I would have to significantly change multiple scripts if I used your guys' advice. Anyways I might not have a choice. The correction you gave me is pretty much identical to the one I had and has the same problems.

EDIT: Found a way to avoid the problem entirely.

Last edited by fflarex (2008-09-27 07:35:21)

Arch Linux

#1 2008-09-26 20:04:46

[SOLVED] scope issues in sh/bash...

#2 2008-09-26 20:14:22

Re: [SOLVED] scope issues in sh/bash...

#3 2008-09-26 20:41:32

Re: [SOLVED] scope issues in sh/bash...

#4 2008-09-26 20:42:10

Re: [SOLVED] scope issues in sh/bash...

#5 2008-09-26 20:47:15

Re: [SOLVED] scope issues in sh/bash...

#6 2008-09-26 21:05:12

Re: [SOLVED] scope issues in sh/bash...

#7 2008-09-26 21:08:28

Re: [SOLVED] scope issues in sh/bash...

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