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From: maart@cs.vu.nl (Maarten Litmaath)
Newsgroups: comp.unix.questions
Subject: Re: Variable substitition
Message-ID: <8406@star.cs.vu.nl>
Date: 3 Dec 90 19:05:27 GMT
References: <1990Nov30.092424@cs.utwente.nl> <8393@star.cs.vu.nl>
Sender: news@cs.vu.nl
Reply-To: maart@cs.vu.nl (Maarten Litmaath)
Organization: VU Dept. of Computer Science, Amsterdam, The Netherlands
Lines: 18

In article <8393@star.cs.vu.nl> I wrote:
)...
)# Instead of ``echo "$foo"'' you could use the portable echo hack:
)#
)#	expr "$foo" : '\(.*\)'

Better make that:

	expr "xxx$foo" : 'xxx\(.*\)'

Then you won't get ``expr: syntax error'' if $foo equals `match' or `+'
or `-' or...  :-(
Grrrrr!
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