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how to search for string that includes folder separator ?

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# 8  
Old 05-26-2010
Quote:
Originally Posted by pseudocoder
Useless use of cat
I know that some folks tend to consider "making things explicit thus hopefully more transparent" as being useless Smilie
# 9  
Old 05-26-2010
How can I replace hardcoded strings with variables in grep -E ?

Code:
str1='userA'
str2='aaaaaaa'

/usr/xpg4/bin/grep -E '${str1}.*${str2}/+' input.txt

grep: RE error in ${str1}.*${str2}/+ syntax error

# 10  
Old 05-26-2010
Try (double quotes, without curly brackets)
Code:
/usr/xpg4/bin/grep -E "$str1.*$str2/+" input.txt

# 11  
Old 05-26-2010
Quote:
Originally Posted by kchinnam
What does that + do at the end ?
It matches one or more copies of the previous element. Type man grep for further info.

Quote:
I know that some folks tend to consider "making things explicit thus hopefully more transparent" as being useless
...at the cost of an additional process. Smilie
# 12  
Old 05-26-2010
Parameters within regex expression is not working ..Smilie

Code:
> cat input.txt
/userA/bla/bla/bla/../aaaaaaabbb/jakarta
/userA//bla/bla/../../aaaaaaa/jakarta
/userB/bla/../aaaaaaabbb/jakarta
/userB/bla/aaaaaaa/jakarta

$>str1='userA'; str2='aaaaaaa/'; /usr/xpg4/bin/grep -E '$str1.*$str2' input.txt
grep: RE error in $str1.*$str2 unknown regex error

# 13  
Old 05-26-2010
Please also try using double quotes, like I suggested in posting # 10
Code:
/usr/xpg4/bin/grep -E "$str1.*$str2" input.txt

This User Gave Thanks to pseudocoder For This Post:
kchinnam
# 14  
Old 05-26-2010
Thanks for the patience.. Now I got the solution..
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