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Using sed to find a substring from a file

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# 1  
Old 10-03-2012
Using sed to find a substring from a file
HI All,
I have a file which looks like below
./Prod_id/rel/prod/lib.a
./Some_text/rel/fld/lib.a
./Some_text/deb/detail/lib.a
./Some_text/deb/err/lib.a
./Some_text/rel/prod/lib.a
./Some_text/rel/fld/lib.a
./Some_text/deb/detail/lib.a
./Some_text/deb/err/lib.a

I want to copy only those lines which has "prod" in it.Please let me know how I can configure my sed command ???
# 2  
Old 10-03-2012
Please let me know what is desired output you want?
# 3  
Old 10-03-2012
sed -n '/prod/p' file ??
# 4  
Old 10-03-2012
sed is a stream editor. Why use it in this case when the only thing you want to do is print out the lines containing a certain string? fgrep is what you need.
# 5  
Old 10-03-2012
I want a output as below
./Prod_id/rel/prod/lib.a
./Some_text/rel/prod/lib.a

Only those lines which has 'prod ' in it.
# 6  
Old 10-03-2012
you can try below also..

Code:
grep '/prod/' test.txt

---------- Post updated at 02:06 AM ---------- Previous update was at 02:04 AM ----------

one more...
Code:
awk '/prod/' test.txt

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