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Full Discussion: How to use Grep properly?
Top Forums Shell Programming and Scripting How to use Grep properly? Post 302948671 by RudiC on Wednesday 1st of July 2015 11:05:32 AM
Old 07-01-2015
Alas you are leaving out the essential part - the contents of IDgroups. And, I'm nor sure I understand the underlying logics. Do you want a "logical AND" of the two group lists: grouplist and IDgroups?

BTW, the redirection >> $FilterIDgroups will fail as you assigned the empty string to FilterIDgroups.

---------- Post updated at 17:05 ---------- Previous update was at 17:02 ----------

And, you could eliminate a big portion of your code snippet by using an array:
Code:
IFS="|" grouparr=($grouplst )
while (( cntr < ${#grouparr[@]} )); do echo ${grouparr[((cntr++))]}, $cntr; done

And, you're assigning cntr3 but using cntr.
 

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LEARN ABOUT XFREE86

times

times(1)                                                           User Commands                                                          times(1)

NAME

       times - shell built-in function to report time usages of the current shell

SYNOPSIS

   sh
       times

   ksh
       times

DESCRIPTION

   sh
       Print the accumulated user and system times for processes run from the shell.

   ksh
       Print the accumulated user and system times for the shell and for processes run from the shell.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words,  following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
           able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation  are  not
           performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), sh(1), time(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                           times(1)
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