02-15-2008
Quote:
Originally Posted by
fimblo
eval echo \$VAR_$TEMP
This 3-word expression goes thru the last word twice- the first iteration by eval which evaluates the expression followin it- where it expands the var $TEMP to 'ONE', and also unescapes the first backslash.
This leaves 'echo $VAR_ONE'. echo does its job, and you get:
hello.
cheers, hope this helps.
EDIT: Didnt test this in ksh now, but I think this is how I did it at work...
Thanks this solution works but I want to assign the output to a variable.... its not working. I tried both
Q=eval echo \$VAR_$TEMP
Q=`eval echo \$VAR_$TEMP`
echo $Q doesnt give same output as eval echo \$VAR_$TEMP
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LEARN ABOUT OPENDARWIN
times
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)