Shell Programming and Scripting

Hi All,

I have came across an issue where I will grep for a primary key and then I have to delete that particular line from the feed file and then save it.

The feed file is a TAB delimited one.

For example:

Code:

grep 539439AE9 file1

100.00000       20090119   20090119 20090521        20081121        20090119        100.000000      B3L4LN1         US539439AE93    112428

So in the above, since the result after grepping for the primary is only 1 line, I have delete that line from the file1 and then save it.

Could someone please help me out in this.

Code:

 
grep -v 539439AE9 file1 > file2
mv file2 file1

If -i option is supported in your sed:

Code:

sed -i '/539439AE9/d' file1

Guru.

Code:

 
awk ' !/539439AE9/ {print $0}' file1 > file2

Hi itkamaraj,

I liked the below answer from you.... I dont know why it didnt strike me...Nice to learn more things ....

Code:

grep -v 539439AE9 file1 > file2 mv file2 file1

Thanks a lot for all your replies. Really helpful.