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Full Discussion: perl - why is the shell script executed before the print command?
Top Forums Shell Programming and Scripting perl - why is the shell script executed before the print command? Post 302137011 by mjays on Friday 21st of September 2007 05:09:02 AM
Old 09-21-2007
perl - why is the shell script executed before the print command?
i'm writing some simple scripts to help me learn perl.

why does the print command get called after the shell script is executed?

the purpose of the shell script is to simply echo to the screen "script run". which is does, but before the print command, you can clearly see the shell script is called after the print command.

Code:
print "\ntry and run shell script";
$execute = system("/export/home/reladmin/scripts/tst.ksh") && die "cannot";


OUTPUT:
script run
try and run shell script

you see, this could be a problem when i come to write my proper perl scripts, where i want a shell script to be called and executed before the perl script continues and executes another command.
 

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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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