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Full Discussion: [Perl] Accessing array elements within a sed command in Perl script
Top Forums Shell Programming and Scripting [Perl] Accessing array elements within a sed command in Perl script Post 302242782 by userix on Thursday 2nd of October 2008 11:58:56 PM
Old 10-03-2008
[Perl] Accessing array elements within a sed command in Perl script
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
Code:
$count = 0;
while ( $count < $#test )
{
        `sed -e 's/BIOGRF  321/BIOGRF  332/g' ${test[$count]} > 0`;
        `cat 0 > ${test[$count]}`;
        $count++;
}

`rm 0`;

This script doesn't work as is and I think it might be something with the syntax of how to call the element of an array within a embedded sed command. If I put an actual integer as the array index instead of the variable $count, it works fine, but if I try to use $count, it doesn't work at all. I know this might not be the most efficient method, but it is the only way I can think of with my limited knowledge of perl scripting.
 

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LEARN ABOUT SUNOS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a	Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

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

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

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.10							    30 Jan 2004 							 script(1)
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