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Top Forums Shell Programming and Scripting Extracting substring from variable Post 302973527 by rbatte1 on Wednesday 18th of May 2016 10:28:10 AM
Old 05-18-2016
What shell are you working in?

If it's ksh (and possibly bash too) you can do this sort of thing:-
Code:
echo ${var%?}

It looks shocking, but it is slicing the variable up a little. It is called variable substitution and you should be able to get a fuller explanation if you search for that. It would probably not be best if I try to re-write existing documentation.



I hope that this helps,
Robin
 

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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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