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probem while grep

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# 8  
Old 04-11-2008
problem with grep
Hi,

Sorry to confuse you guys..

Ex:

123892TX ETV156SWI DEV 14 5:20 5:45 UBXS

Above record has 7 fields.
In above record, SWI is a part of field & DEV is separate field.
SO I have to grep a record which has SWI & DEV.

Hope this hepls.
# 9  
Old 04-11-2008
What is the problem with my solution(s) ?

Jean-Pierre.
# 10  
Old 04-11-2008
Hammer & Screwdriver
grep 'swi' file.txt | grep "DEV" | cut -f 6 >> f.txt

perhaps should be
grep 'SWI' file.txt | grep "DEV" | cut -f 6 >> f.txt

or
grep -i 'swi' file.txt | grep "DEV" | cut -f 6 >> f.txt
# 11  
Old 04-11-2008
problem with grep
Hi,

So my understading so far is, if a searching pattern is a part of word, then we should keep it in single quotes. and if the searching pattern is itself a single word, we should keep it in double quotes.

Is that correct.

Thanks.
# 12  
Old 04-11-2008
Hammer & Screwdriver Case is important in grep
You either have to be exact in the grep by using "SWI"
or, tell grep to ignore case

>grep -i

Your example had "SWI" but your grep was for "swi"
Last edited by joeyg; 04-11-2008 at 05:17 PM..
# 13  
Old 04-11-2008
Quote:
Originally Posted by pradeep_script
Hi,

So my understading so far is, if a searching pattern is a part of word, then we should keep it in single quotes. and if the searching pattern is itself a single word, we should keep it in double quotes.

Is that correct.

Thanks.
NO
The following commands do exactly the same thing :
Code:
grep SWI file.txt
grep 'SWI' file.txt
grep "SWI" file.txt

Lines containing SWI are selected

Jean-Pierre.
# 14  
Old 04-11-2008
problem with grep
oh...


Then wat is the difference b/w using single quotes & double quotes
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