Shell Programming and Scripting

HI

I'm looking to delete lines ending with .tk from below data file
---------
abc.tk
mgm.tk
dtk
mgmstk
------

I have written below code
----
sed '/.tk *$/d' dat_file.txt > temp.txt
----

But its deleting all the lines ending with tk. I need to delete only the lines ending .tk

my expected output is
----
dtk
mgmstk
----

Can you please help me to resolve the issue?

Thanks.
Shekhar

if you have Python, here's an alternative

Code:

#!/usr/bin/evn python
import fileinput
for line in fileinput.FileInput("file",inplace=1):
    line=line.strip()
    if not line.endswith(".tk"):
        print line

output

Code:

# more file
abc.tk
mgm.tk
dtk
mgmstk
# ./test.py
# more file
dtk
mgmstk

Can you give the code using sed

use this

Code:

 sed '/\.tk *$/d' dat_file.txt > temp.txt

you need to replace the . with \. in order to remove its special usage.

Thanks shubhendu. ur code working pefectly

Code:

sed '/\..*$/d' yourfile