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Urgent solution required [message #98575]

Tue, 11 January 2005 23:09

Naveen Verma
Messages: 60
Registered: August 2004

Member

What do we mean by ${1#-} in Kshell? How it is different from $1, the positional parameter?

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Re: Urgent solution required [message #98576 is a reply to message #98575]

Wed, 12 January 2005 02:33

Frank Naude
Messages: 4596
Registered: April 1998

Senior Member

See the ksh man page:

${parameter#word}
           Remove Smallest  Prefix  Pattern.  The  word  will  be
           expanded to produce a pattern. The parameter expansion
           then will result in parameter, with the smallest  por-
           tion of the prefix matched by the pattern deleted.

Here is an example:

$ export X=-string
$ echo $X
-string
$ echo ${X#-}
string

Best regards.

Frank

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