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Top Forums UNIX for Dummies Questions & Answers Rename file based on first 3 characters of data in file Post 302242155 by jchappel on Wednesday 1st of October 2008 09:01:37 AM
Old 10-01-2008
Rename file based on first 3 characters of data in file

I'm looking to determine if I can use a grep command to read file and rename the file based on the first 3 characters of the data in the file.

An example is:

Read FileA
If the first 3 positions of the data in the file are "ITP", then rename the file as FileA_ITP, else if the first 3 positions are "UNB" then rename the file FileA_UNB.

I believe I might be able to use the GREP command to identify the data but not sure how to rename the file being processed.

Appreciate any feedback.
 

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LVRENAME(8)                                                   System Manager's Manual                                                  LVRENAME(8)

NAME
lvrename - rename a logical volume SYNOPSIS
lvrename [-A|--autobackup {y|n}] [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--version] [-f|--force] [--noudevsync] {OldLogi- calVolume{Name|Path} NewLogicalVolume{Name|Path} | VolumeGroupName OldLogicalVolumeName NewLogicalVolumeName } DESCRIPTION
lvrename renames an existing logical volume from OldLogicalVolume{Name|Path} to NewLogicalVolume{Name|Path}. OPTIONS
See lvm(8) for common options. --noudevsync Disable udev synchronisation. The process will not wait for notification from udev. It will continue irrespective of any possible udev processing in the background. You should only use this if udev is not running or has rules that ignore the devices LVM2 cre- ates. EXAMPLE
To rename lvold in volume group vg02 to lvnew: lvrename /dev/vg02/lvold vg02/lvnew An alternate syntax to rename this logical volume is: lvrename vg02 lvold lvnew SEE ALSO
lvm(8), lvchange(8), vgcreate(8), vgrename(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVRENAME(8)
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