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Full Discussion: Please decode in English
Top Forums Shell Programming and Scripting Please decode in English Post 24674 by Perderabo on Tuesday 16th of July 2002 01:17:41 PM
Old 07-16-2002
$0 is the name of the script. Suppose I type a command like this:

somescript option filename

You seem to know that $1 will be "option" and $2 will be "filename". You need to accept that $0 will be "somescript" as well.

As for:
file=rpt

This creates a variable named file and sets it equal to "rpt". You can see references to $file in a line like:
mv pur_jur1.csv pur_jur_"$file".csv

That will become
mv pur_jur1.csv pur_jur_rpt.csv
 

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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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