topic Re: Shell Scripting in Operating System - Linux

Shell Scripting

Ankush_me — Sun, 18 Feb 2007 00:40:48 GMT

Can u all help me in devloping a shell script which converts the string into paragrah detecting tab spaces and new line and commas also.i m not getting how to procced.

Re: Shell Scripting

Steven E. Protter — Sun, 18 Feb 2007 09:18:00 GMT

Shalom,

http://www.freeos.com/guides/lsst/

I generally don't write complex shell scripts for points. Shell scripting to some degree is an important part of systems administration.

Time to learn.

SEP

Re: Shell Scripting

Ankush_me — Sun, 18 Feb 2007 20:20:08 GMT

Hi Every one

But by means of this link i didnt get a much idea to procced.

Can some one help me in that?

Re: Shell Scripting

Andrew Cowan — Mon, 19 Feb 2007 03:33:13 GMT

Ankush,

Can you be more clear as what is in the string, and what you mean by a paragraph as this is normally decided by a carriage-return at the end of your text. Eg. I typed this message as one continoue line and the web-form in the form decides how to wrap it around?

Re: Shell Scripting

James R. Ferguson — Tue, 20 Feb 2007 09:37:39 GMT

Hi:

If you will accept Perl instead of a shell script, consider this:

Consider this:

/*file_begins*/

Perl has a read-made soultion for you if you are willing to use it instead of a pure shell script. The Perl module you need is called Text::Wrap and it's included in you standard Perl distribution. In fact, you can use this very file to call it and show it reformatting. Let's reformat this into text that spans no more than 30-columns
and has it paragraphs indented four (4) spaces.

/*file_ends*/

Now, use this passing the name of the file with the above contents:

# perl -MText::Wrap -e '@lines=<>;$Text::Wrap::columns=30;print wrap(" ","",@lines)' file

Perl has a read-made
soultion for you if you are
willing to use it
instead of a pure shell
script. The Perl module you
need is called
Text::Wrap and it's included
in you standard Perl
distribution. In fact,
you can use this very file to
call it and show it
reformatting. Let's
reformat this into text that
spans no more than 30-columns
and has it paragraphs
indented four (4) spaces.

Regards!

...JRF...

Re: Shell Scripting

Stuart Browne — Tue, 20 Feb 2007 22:14:16 GMT

'pr' is your friend.

It's a print formatter. Tell it how wide you want to go, how long your pages are, and it does the rest for you.