Very Computer

by **Brandon Hopp** » Sun, 21 Jul 2002 04:56:23

I want to pass a directory filter as a command line argument as such:

./script *.c

But *.c expands to every .c file in the directory on the command line,
so instead of 1 argument, I get several arguments.

Is there way for the script to receive *.c instead of a list of files. I
want the variable $1 to be "*.c"

TIA

by **John Do** » Sun, 21 Jul 2002 05:20:06

Quote:> Is there way for the script to receive *.c instead of a list of files. I
> want the variable $1 to be "*.c"

./script '*.c'

by **Brandon Hopp** » Sun, 21 Jul 2002 05:37:49

> > Is there way for the script to receive *.c instead of a list of files. I
> > want the variable $1 to be "*.c"

> ./script '*.c'

Granted that works although it expands *.c into all the files still. I
would rather not have to put quotes around it so that it works as other
scripts when wanting a list of files.

by **John Do** » Sun, 21 Jul 2002 05:57:52

Quote:> Granted that works although it expands *.c into all the files still. I
> would rather not have to put quotes around it so that it works as other
> scripts when wanting a list of files.

Well, you have to do something to prevent expansion by the shell before your
script sees it. You can escape the * by
./script \*.c

Also, in your script refer to it as "$1" instead of simply $1

For example:
#!/bin/ksh
echo "$1"

When I call this script as
./script \*.c
I get
*.c
as the output

by **William Par** » Sun, 21 Jul 2002 08:00:31

>> > Is there way for the script to receive *.c instead of a list of files. I
>> > want the variable $1 to be "*.c"

>> ./script '*.c'

> Granted that works although it expands *.c into all the files still. I
> would rather not have to put quotes around it so that it works as other
> scripts when wanting a list of files.

It is the shell which does the filename expansion. So, you have to quote
the metacharaters '*' somehow, either by
'*.c'
or by
\*.c

--

8-CPU Cluster, Hosting, NAS, Linux, LaTeX, python, vim, mutt, tin

by **John DuBo** » Sun, 21 Jul 2002 14:05:05

>> > Is there way for the script to receive *.c instead of a list of files. I
>> > want the variable $1 to be "*.c"

>> ./script '*.c'

>I would rather not have to put quotes around it

The script itself has no control over this; by the time it gets its arguments
globbing has either been done or it hasn't. If your interactive shell happens
to be zsh, you can control whether such globbing is done by using the
precommand modifier 'noglob':

alias myscript='noglob myscript'

John
--

by **Nick Hayne** » Tue, 23 Jul 2002 19:30:50

>>>Is there way for the script to receive *.c instead of a list of files. I
>>>want the variable $1 to be "*.c"

>>./script '*.c'

> Granted that works although it expands *.c into all the files still.
> I
> would rather not have to put quotes around it

Sorry, but that's the way it works.

by **Brandon Hopp** » Wed, 24 Jul 2002 02:27:53

Quote:> Sorry, but that's the way it works.

That's cool. Thanks for all the replies. Learned something new today.

Very Computer

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?

How to pass reg exp as command line argument in shell script?