On Jan 6, 2005, at 11:00 PM, Tom Vilot wrote:
Eric F Crist wrote:
What is the point of the { } around some variables?
It's not strictly necessary, except in some cases. i.e:
m=34 echo $m You don't need it there. But you would want it here: f=/var/filename fname=${f//name/name2}
It's when you need to differentiate the variable name from operations around it ... for want of a better explanation
a good explanation. When I'm being particularly fussy about a script, I'll use echo "${m}" just in case $m has some unexpected characters in it such as a space ! $ * etc which can really screw things up.
TjL
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