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Old 03-19-2008
RichieFondel RichieFondel is offline
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Bash variables
Ummm can anybody help me with this one?

Its prob quite simple.

I bascially have a file name say J1x2x3x7.dat

Im using the file name as a variable in a bash script. Want I want to do is extract most of the file name and make it a new variable expect with say one of the number now a wildcard, so have something like J1x*x3x7.dat as my new file name?

Can this be easily done. I'm sure it can smile.gif ?
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Old 03-19-2008
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fpmurphy fpmurphy is offline Forum Staff  
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Yes, asterisks are permitted in filenames on most UNIX systems. However, using an asterisk in a filename is a really bad idea for lots of reasons and is generally avoided. Note that POSIX filenames cannot contain asterisks.
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Old 03-19-2008
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cfajohnson cfajohnson is offline Forum Advisor  
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Quote:
Originally Posted by RichieFondel View Post
Ummm can anybody help me with this one?

Its prob quite simple.

I bascially have a file name say J1x2x3x7.dat

Im using the file name as a variable in a bash script. Want I want to do is extract most of the file name and make it a new variable expect with say one of the number now a wildcard, so have something like J1x*x3x7.dat as my new file name?

Can this be easily done. I'm sure it can smile.gif ?


Code:
file=J1x2x3x7.dat
newfile=J1x*x3x7.dat
mv "$file" "$newfile"

However, be aware that such a filename can cause problems.

See the POSIX standard for portable filenames:
General Concepts: Filenames
Definitions: Portable Filename Character Set
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