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Full Discussion: traversing a string
Top Forums Shell Programming and Scripting traversing a string Post 302681095 by Corona688 on Thursday 2nd of August 2012 05:48:25 PM
Old 08-02-2012
Depends which shell. Some shells have substring operators, some don't. Some have for-loops, some don't.

In bash or a new-enough ksh:

Code:
for ((N=0; N<${#VAR}; N++))
do
        echo "${VAR:$N:1}"
done

See the String Operations chart in the Advanced Bash Scripting Guide. A few of them might be bash-specific but quite a few of them are common to many Bourne shells.
This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT SUSE

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

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

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

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)
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