searching pattern in tab delimited file using grep
 

Suppose i have a file(1.txt) separated by TAB delimiter in a line

1 B AB 2
2 C AB 2

if I need to search for the records having B?? using grep
If i need to perform multiple search like line having "C and AB" or "B and AB"??

simple grep 'B' 1.text gives both record.

Please help
Thanks in advance
Vaibhav

Hi,

Use grep's -w option: grep -w B 1.txt

-w -> Select only those lines containing matches that form whole words.

Hope this helps.

Hi,

What about 2nd question?

If i need to perform multiple search like line having "C and AB" or "B and AB"??

Thanks,
Vaibhav

You can use a pipe to connect two grep commands.

Hi,

What do you actually want to search for: C<tab>AB or a C and AB anywhere in a line (AB X Y C would be an example of the second)?

Assuming you want the first:
grep "C<tab>AB" infile, there is one catch: pressing the tab will tell bash to try to complete the C. You can enter a tab in the search string by first pressing <ctrl-v> followed by pressing the <tab>.

This is absolutely correct
 

Thanks.
It Worked!