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Top Forums Shell Programming and Scripting Prevent file from being mailed multiple times from a job Post 302096200 by RTM on Tuesday 14th of November 2006 10:42:21 AM
Old 11-14-2006
You could, when you mail the file, move it to file.old and then in the next run, if there is a file.old, compare it to the new file that is just made. If they are the same, don't mail it. If they are different, add the new changes to the file.old and send/mail the new changes and then move the new one to file.old. This way, you don't lose any info that needs to be corrected, the users will be getting data that is new.

Once you have a run with no changes (zero bytes), you could remove file.old for future runs.
 

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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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