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Full Discussion: How to remove numbers from filename
Top Forums Shell Programming and Scripting How to remove numbers from filename Post 302314083 by colemar on Thursday 7th of May 2009 10:43:16 AM
Old 05-07-2009
In "${i//abc/}" abc is regarded as regular expression (regexp).
You need only to improve on the regexp to make it match what you want.
Regexp syntax for bash and ksh is a little different from the POSIX syntax (i.e. egrep).
  • abc matches just "abc" on any position
  • abc+([0-9]) matches "abc", followed by one or more decimal digits, on any position
  • abc *+([0-9]) matches "abc", followed by zero or more spaces, followed by one or more decimal digits, on any position
  • abc *+([0-9])$ matches "abc", followed by zero or more spaces, followed by one or more decimal digits, only if at the end of the filename

If you need to remove "abc" and the number, keeping what is in between, then you have to apply two successive ${i//.../} operations; alternatively you can use backreferences like:
Code:
${i//removethis1\(keepthis1\)removethis2/\1}

where keepthis1 and removethis1...removethis2 are regexp.

Well, I don't remember if bash or ksh93 really do support backreferences.
Last edited by colemar; 05-09-2009 at 09:27 AM..
 

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LEARN ABOUT XFREE86

fs_whereis

FS_WHEREIS(1)						       AFS Command Reference						     FS_WHEREIS(1)

NAME
       fs_whereis - Reports each file server housing a file or directory

SYNOPSIS
       fs whereis [-path <dir/file path>+] [-help]

       fs whe [-p <dir/file path>+] [-h]

DESCRIPTION
       The fs whereis command returns the name of each file server machine that houses the volume containing each directory or file named by the
       -path argument.

OPTIONS
       -path <dir/file path>+
	   Names each AFS file or directory for which to return the host file server machine. Partial pathnames are interpreted relative to the
	   current working directory, which is also the default value if this argument is omitted.

       -help
	   Prints the online help for this command. All other valid options are ignored.

OUTPUT
       The output includes a line for each specified directory or file. It names the file server machine on which the volume that houses the
       specified directory or file resides. A list of multiple machines indicates that the directory or file is in a replicated volume.

       Machine names usually have a suffix indicating their cell membership. If the cell is not clear, use the fs whichcell command to display the
       cell in which the directory or file resides. To display the cell membership of the local machine, use the fs wscell command.

EXAMPLES
       The following example indicates that volume housing the directory /afs/abc.com resides is replicated on both "fs1.abc.com" and
       "fs3.abc.com":

	  % fs whereis -path /afs/abc.com
	  File /afs/abc.com is on hosts fs1.abc.com fs3.abc.com

PRIVILEGE REQUIRED
       None

SEE ALSO
       fs_whichcell(1), fs_wscell(1)

COPYRIGHT
       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26							     FS_WHEREIS(1)
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