grep functionality

[Dave Walley]

Hi.

I have a file with multiple fields as follows

dwafcs is 7.3.4
dwerp is 8.1.7
pwcst is 7.3.4
pwoverp is 8.1.7

I want to select only those lines where the last letter of the first field is p, in the example above I would want lines 2 and 4. How can I do it?

Thanks in advance.

Dave

[Simon Hargrave · Accepted solution]

In the simplest case: -

grep "^.*p " file

Except this will also match a line eg "pcswt ip 7.3.4" (since it's greedy by default). The following is the non-greedy equivelant and should do what you want: -

grep "^[^ ]*p " file

[Sridhar Bhaskarla]

Hi Dave,

I will try to do it with awk assuming that the field is always the first one..

awk '$1 ~ /p$/ {print}' data

-Sri