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help with grep command

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# 1  
Old 06-15-2011
help with grep command
i have the following lines
T2345
T3435 - bugfixed and running
T5654 fixed and committed
T34541:- fixed and committed

i need to extract only the T[0-9] part (eg:T2345) ,ie i dont want any special characters after it.

i have been trying with grep and egrep but with no luck.
pls help
# 2  
Old 06-15-2011
Code:
bash-3.00$ nawk -F"[ \:]" '{print $1}' /tmp/myfile
T2345
T3435
T5654
T34541

# 3  
Old 06-15-2011
Or:
Code:
sed 's/\(.[0-9]*\).*/\1/' file

# 4  
Old 06-15-2011
tanx guys...Smilie
I tried both the commands and it worked.....
I also got the same result by using grep
Code:
grep -o "^T[0-9]*" pmt.txt

there is one more thing,there are lines like these in my text file

Code:
T7310,T7311
T0000
T0000
T7325
T7328:Provide Employee Group classification in Attendance confirmation screen, Mark Attendance Screens  and leave Encashment Screen.
T7307
T7209
T7279
T6976,T6869

i want the comma(,) separated ones (T6976,T6869) intact,means i want to
keep the comma separated ones unchanged

P.S:i am beginning to enjoy scripting Smilie
# 5  
Old 06-15-2011
This should work...

Code:
 sed '/T\([0-9]*\),[A-Z]/ !s/\(.[0-9]*\).*/\1/' inputfile

Thanks
Sha
# 6  
Old 06-15-2011
Quote:
Originally Posted by born
Code:
T7310,T7311
T0000
...
T7279
T6976,T6869

i want the comma(,) separated ones (T6976,T6869) intact,means i want to
keep the comma separated ones unchanged

P.S:i am beginning to enjoy scripting Smilie
Code:
egrep -o '(T[0-9]+,?)*' pmt.txt

It becomes adictive
# 7  
Old 06-15-2011
tanx guyzz...Smilie
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