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Shell Programming and Scripting

Does Filename Match Pattern

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# 8  
Old 12-16-2008
Quote:
Originally Posted by cfajohnson

The shell performs filename expansion anywhere you have an unquoted pattern. If you do not want it expanded, quote it.

You have unquoted patterns in your array assignments and in the array expansion.
Yes I thought that would work but the quoting doesn't seem to be working:

rrdhcp72-277:L0 msb65$ ls
A2008283115500.L0_LAC MOD00.P2008183.0240_1.PDS
A2008291124500.L0_LAC temp
A2008304121500.L0_LAC
rrdhcp72-277:L0 msb65$ pattern='A*'
rrdhcp72-277:L0 msb65$ echo $pattern
A2008283115500.L0_LAC A2008291124500.L0_LAC A2008304121500.L0_LAC

Why is the shell still expanding filename? I am using bash on OS 10.5
# 9  
Old 12-16-2008

You haven't quoted the pattern.

Code:
echo "$pattern"

# 10  
Old 12-16-2008
ahaa!!! thank you. One last question: what is the difference between '' and ""? Thanks for all your help. I really appreciate it.

Mike
# 11  
Old 12-16-2008
Quote:
Originally Posted by msb65
what is the difference between '' and ""? Thanks for all your help. I really appreciate it.

Try it and see.
Last edited by vgersh99; 12-16-2008 at 08:49 PM.. Reason: fixed the quote formating
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