Hi All,

I have a directory containing multiple files.
and also a txt file which contains the list of all filenames and certain values.

I want to read the text file line by line and if its 2nd column is matched with the filename in directory, then it must insert the values in 7th column to the filename.

ex: DIR [ a.txt
b.txt
c.txt]

filenamelist.txt

assa  dsad werr vdss a.txt is 2.4
assa  dsad werr vdss b.txt is 3.2
assa  dsad werr vdss c.txt is 4.3

a_2.4
b_3.2
c_4.3

#! /bin/bash
while read v1 v2 v3 v4 v5 v6 v7
do
    [ -e $v5 ] && mv "$v5" "${v5%.txt}_$v7"
done < filenamelist.txt

I don't see any of the file names cited
a) in col 2 of your filenamelist.txt
b) in your desired output sample.

Hi Balajesuri
Thanks for the reply, but unfortunately this code is not working.....
Although its not showing any error..but i am not getting the required output.

what is the function of -e here?

Hi RudiC,

By mistake I wrote column 2, whereas the filename is in column 5. Filename in output is a, b, c followed by underscore and the values in column 7

[user@host ~]# cat file
assa  dsad werr vdss a.txt is 2.4
assa  dsad werr vdss b.txt is 3.2
assa  dsad werr vdss c.txt is 4.3
[user@host ~]# awk '{sub(/.txt/,"",$5); print $5"_"$7}' file
a_2.4
b_3.2
c_4.3
[user@host ~]#

Hi Balajesuri,

It is actually printing the above result shown by you but filenames are as such....I basically want to change the filenames as it is printed above.
Please suggest me something to change the filename.

The awk command in post #5 exactly does this.

Please elaborate. You want to change the filename to what?