Shell Programming and Scripting

Hi,

i am using fgrep command with following syntax

Code:

fgrep -v -f pattern_file_name file

file contains few line and have the pattern which i am giving in pattern file.

My Problem is :
its is not giving any output.

while i am using fgrep -f pattern_file_name file

it is showing all lines of file.


this was the case of Cshell, if i run these command in tclsh

then (fgrep -v -f pattern_file_name file) command giving exception like -child process exited abnormally.

please provide me a solution of this problem.

Thanks

I believe the only cause is wrong patterns in your "pattern_file_name". But I could be wrong of course.

I tried in CSH and the same worked for me OK.

Code:

 
cat rem
aa bb
gg
dd ff

cat rem1
ss ddd aa bb ff gg
dd ff ff ff fff
dsds
dsd
agdsgs

 
TESTBOX> fgrep -f rem rem1
ss ddd aa bb ff gg
dd ff ff ff fff
TESTBOX> fgrep -v -f rem rem1
dsds
dsd
agdsgs

post the sample i/p and o/p from your system.

Thanks Panyam

I used same file which you have shown in ur thread but still ...

cat file ----
ss ddd aa bb ff gg
dd ff ff ff fff
dsds
dsd
agdsgs

cat filter1
aa bb
gg
dd ff

Output for the command ---fgrep -f filter1 file
it is giving complete file
ss ddd aa bb ff gg
dd ff ff ff fff
dsds
dsd
agdsgs

output for the command ---fgrep -v -f filter1 file

it is not printing anything

so what may be the problem with me ?

Thanks

Looks odd!!..

Is it a simple "grep" working?

try with grep -f option and see.