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Full Discussion: extracting substrings from variables
Top Forums Shell Programming and Scripting extracting substrings from variables Post 302525654 by gary_w on Friday 27th of May 2011 10:31:46 AM
Old 05-27-2011
Another method to consider
Do you have control over the field separator character? If you used a more common separator like a pipe (or converted " && " to a pipe before processing it) you could parse the string and put the values into an array (I am using ksh93 on Solaris by the way):
Code:
#!/usr/dt/bin/dtksh

# Set a string variable.
pathlist="/var/x/www|/usr/x/share/doc|/etc/x/logs"

# Set the Input Field Separator. 
IFS='|'

# Create an array, with elements automatically parsed by the IFS string.
set -A parsed_pathlist_array $pathlist

# Prove it works.
print "1: ${parsed_pathlist_array[0]}"
print "2: ${parsed_pathlist_array[1]}"
print "3: ${parsed_pathlist_array[2]}"

exit 0

Just another way to go about it.

Gary
 

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pod2usage

POD2USAGE(1)						 Perl Programmers Reference Guide					      POD2USAGE(1)

NAME

       pod2usage - print usage messages from embedded pod docs in files

SYNOPSIS

       pod2usage   [-help] [-man] [-exit exitval] [-output outfile] [-verbose level] [-pathlist dirlist] file

OPTIONS AND ARGUMENTS

       -help   Print a brief help message and exit.

       -man    Print this command's manual page and exit.

       -exit exitval
	       The exit status value to return.

       -output outfile
	       The output file to print to. If the special names "-" or ">&1" or ">&STDOUT" are used then standard output is used. If ">&2" or
	       ">&STDERR" is used then standard error is used.

       -verbose level
	       The desired level of verbosity to use:

		   1 : print SYNOPSIS only
		   2 : print SYNOPSIS sections and any OPTIONS/ARGUMENTS sections
		   3 : print the entire manpage (similar to running pod2text)

       -pathlist dirlist
	       Specifies one or more directories to search for the input file if it was not supplied with an absolute path. Each directory path in
	       the given list should be separated by a ':' on Unix (';' on MSWin32 and DOS).

       file    The pathname of a file containing pod documentation to be output in usage message format (defaults to standard input).

DESCRIPTION

       pod2usage will read the given input file looking for pod documentation and will print the corresponding usage message.  If no input file is
       specified then standard input is read.

       pod2usage invokes the pod2usage() function in the Pod::Usage module. Please see "pod2usage()" in Pod::Usage.

SEE ALSO

       Pod::Usage, pod2text(1)

AUTHOR

       Please report bugs using <http://rt.cpan.org>.

       Brad Appleton <bradapp@enteract.com>

       Based on code for pod2text(1) written by Tom Christiansen <tchrist@mox.perl.com>

perl v5.12.4							    2013-03-18							      POD2USAGE(1)
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