extract a sub string from a main string


 
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# 1  
Old 10-04-2008
extract a sub string from a main string

i need a shell program to extract a substring from a main string..
for eg:- main string is madhu..
sub string is mad
o/p:- be mad.
try to solve this one
# 2  
Old 10-04-2008
bijayant@bijayant ~ $ cat test
main string is madhu

bijayant@bijayant ~ $ grep -o mad test2 | echo "be mad"
be mad
# 3  
Old 10-04-2008
Quote:
Originally Posted by Bijayant Kumar
bijayant@bijayant ~ $ cat test
main string is madhu

bijayant@bijayant ~ $ grep -o mad test2 | echo "be mad"
be mad
i didn't get you SmilieSmilie
# 4  
Old 10-04-2008
Quote:
Originally Posted by Bijayant Kumar
bijayant@bijayant ~ $ cat test
main string is madhu

bijayant@bijayant ~ $ grep -o mad test2 | echo "be mad"
be mad
Oopss...sorry,sorry such a silly typo

It will be
bijayant@bijayant ~ $ grep -o mad test | echo "be mad"
be mad
# 5  
Old 10-04-2008
just echo "be mad" will display be mad..
grep -o is used to show part of matched line.. right??
# 6  
Old 10-04-2008
extract substring from mainstring

i need a shell program to extract a substring from a main string..
for eg:- main string is madhu..
sub string is mad
o/p:- mad.
try to solve this one
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