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Full Discussion: parsing problem with script
Top Forums Shell Programming and Scripting parsing problem with script Post 302082697 by mike@freddiemac on Thursday 3rd of August 2006 02:44:34 AM
Old 08-03-2006
Question parsing problem with script
I'm trying to parse the variables out of a comma delimited expression, but i'm having trouble with script:

num_var=1
while [ $num_var -lt 4 ]
do
a=`echo "a=7, b=8, c=9" | awk '{print $num_var}' | cut -d= -f2`
b=`echo $a | cut -d, -f1`
echo $b
num_var=`expr $num_var + 1`
done

the output is:

7
7
7

I know the problem is in the statement print $num_var ... for each time in the loop I want that print statement to be "print $1" then "print $2" then "print $3". How would I go about doing this using my num_var expression?
 

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LEARN ABOUT DEBIAN

cmigrep

CMIGREP(1)						      General Commands Manual							CMIGREP(1)

NAME

       cmigrep - search in ocaml compiled interface files

SYNOPSIS

       cmigrep <options> <module-expression>

DESCRIPTION

       This  manual  page  documents  briefly the cmigrep command.  This manual page was written for the Debian GNU/Linux distribution because the
       original program does not have a manual page.

       cmigrep allows to search for information in compiled interfaces of OCaml modules.  By default, the search applies to the modules  described
       in the .cmi files in the curent directory and in the ocaml standard directory, but this can be changed with the -I option (see below).

       The  argument  <module-expr>  can  be  an  exact  module  name, or a shell wildcard. Multiple modules can be specified. Example: "ModA ModB
       Foo*.Make" means to search ModA, ModB, and any submodule Make of a module that starts with Foo.

OPTIONS

   General Options
       -I directory
	      Add directory to the search path for modules

       -package packages
	      comma separated list of findlib packages to search

       open modules
	      comma separated list of open modules (in order!)

       -help, --help
	      display list of options

   Search Patterns
       -t regexp
	      print types with matching names

       -r regexp
	      print record field labels with matching names

       -c regexp
	      print constructors with matching names

       -p regexp
	      print polymorphic variants with matching names

       -m regexp
	      print all matching module names in the path

       -e regexp
	      print exceptions with matching constructors

       -v regexp
	      print values with matching names

       -o regexp
	      print all classes with matching names

       -a regexp
	      print all names which match the given expression

SEE ALSO

       Examples can be found on /usr/share/doc/cmigrep/README.

AUTHOR

       cmigrep is written by Eric Stokes <letaris@mac.com>.

       This manual page was compiled by Ralf Treinen <treinen@debian.org>.

																	CMIGREP(1)
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