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Full Discussion: Changing file names with AWK
Top Forums Shell Programming and Scripting Changing file names with AWK Post 302378188 by Fredrick on Monday 7th of December 2009 07:34:37 AM
Old 12-07-2009
Changing file names with AWK
Dear All,

I have some thousands of files in a folder and i need to change those file names without opening the file (no need to change anything in the file content, need to change the file name only). The filenames are as follows:

Myfile_name.1_parameter
Myfile_name.2_parameter
Myfile_name.3_parameter
.
.
.
.
Myfile_name.100_parameter
.
.
.
.
.
.
Myfile_name.1000_parameter
.
.
.
.
..
Myfile_name.2000_parameter...and so on.

For other calculation, i need to take these files one by one and do the calculations. But these files are arranged in the following manner (OS-Linux):
Myfile_name.10_parameter
Myfile_name.11_parameter
Myfile_name.12_parameter
.
.
.
Myfile_name.100_parameter
Myfile_name.101_parameter
Myfile_name.102_parameter
.
.
.
Myfile_name.1000_parameter
Myfile_name.1001_parameter
Myfile_name.1002_parameter
.
.
.
.
.
Myfile_name.1_parameter
Myfile_name.20_parameter
Myfile_name.21_parameter ...so on and so forth...

I need to change these file names as follows:

Myfile_name.0001_parameter
Myfile_name.0002_parameter
Myfile_name.0003_parameter
...
...
...
Myfile_name.0100_parameter
...
...
Myfile_name.0200_parameter
..
..
..
Myfile_name.1000_parameter
...
...
...
...
Myfile_name.2000_parameter...an so on.

Simply i need to covert the filename with four digit numbers in it instead of one or two or three digit number in the filename.

Can any one help me to do the same using awk?

Expecting your reply and thanks in advance.

Warm regards
Fredrick.
 

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LEARN ABOUT REDHAT

allneeded

allcm(1)							       teTeX								  allcm(1)

NAME

       allneeded - force the calculation of all fonts now needed

SYNOPSIS

       allneeded [-r] files ...

DESCRIPTION

       allneeded  forces  the calculation of all fonts that are needed to preview a set of dvi files. Just specify where the program should search
       for files on the commandline.  The fonts generation is triggered by running dvips(1) over all accessible dvi-files.  Therefore,	the  fonts
       are created in the resolution needed by dvips.

       If the -r flag is specified, the command dvired(1) will be used instead of dvips.

       allneeded does not recalculate existing fonts (as long as the Metafont mode does not change).

SEE ALSO

       alldc(1), allcm(1), dvips(1), dvired(1), fontimport(1), fontexport(1).

AUTHOR

       Dirk Hillbrecht (dh@informatik.uni-hannover.de)

teTeX								       11/94								  allcm(1)
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