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Full Discussion: How to read a file line by line and store it in a variable to execute a program ?
Top Forums Shell Programming and Scripting How to read a file line by line and store it in a variable to execute a program ? Post 302555084 by shadok on Tuesday 13th of September 2011 10:16:39 PM
Old 09-13-2011
How to read a file line by line and store it in a variable to execute a program ?
Hello, I am quite new in shell scripting and I would like to write a little scritp to run a program on some parameters files.

all my parameters files are in the same directory, so pick them up with

Code:
ls *.para >>dir

after that I have a dir file like that:

Code:
param1.para
param2.para
etc...

I want to run my program prgrm on all parameters file like this:
Code:
prgrm param1.para -option XX
prgrm param2.para -option XX

I saw some scripts using awk but the variable 'var' that store the name of the parameter file seem to doesn't exist out of awk. Smilie

I also tried:
Code:
var="*.para"
echo $var |cut -f1 | read str
echo $str

I have all filenames in 'var' but the spliting with cut apparently doesn't work.

do you have easy way to try ?

thanks very much for your help Smilie

---------- Post updated at 09:16 PM ---------- Previous update was at 07:52 PM ----------

ok, I found a way to solve it:

Code:
var=*.para

arr=$(echo $var | tr " " "\n")

for x in $arr
do
    prgrm $x
done

Smilie
Last edited by shadok; 09-13-2011 at 10:27 PM..
 

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LEARN ABOUT OSX

locale::codes::langfam

Locale::Codes::LangFam(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangFam(3pm)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2012 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.2							    2012-10-11					       Locale::Codes::LangFam(3pm)
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