LinuxQuestions.org - [SOLVED] Substring with specific condition

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Substring with specific condition

hi ,

I am trying to substring a line which is got while reading property file using shell scripting.
The line is something like this:
file\:/aaa/ccc/dd.jar, \^M

I am trying to get the substring as /aaa/ccc/dd.jar

Tried using awk for the same but not getting the right command.

Thanks

Assuming you want the string between : and , then:

Code:

awk -F '(:)|(,)' '{ print $2 }' input.txt

Doesn't have to be quite so flash :)

Code:

awk -F"[:,]" '{print $2}' file

Quote:

Originally Posted by grail (Post 4608085)

Doesn't have to be quite so flash :)

Code:

awk -F"[:,]" '{print $2}' file

Ah, grail, I love your elegant minimalism and fluency :)

A point of style, though -- I would use single quotes for bash wherever double quotes are not necessary.

Hey thanks for your replies!!

Just for anyones interest ,I tried another way of doing it :

cut -d: -f2 | cut -d, -f1

If you can get the string into a bash variable, there are quite a few options available.

Use parameter substitution:

Code:

string='file\:/aaa/ccc/dd.jar, \^M'

substring=${string#*:}

substring=${substring%,*}

echo "$substring"

Use bash's regex ability inside [[..]], and the resulting BASH_REMATCH array:

Code:

string='file\:/aaa/ccc/dd.jar, \^M'

re=':(.+),'

[[ $string =~ $re ]] && echo "${BASH_REMATCH[1]}"

Use IFS to set the field delimiters, and break it up with an array, or read.

Code:

string='file\:/aaa/ccc/dd.jar, \^M'

IFS=':,'

array=( $string )

echo "${array[1]}"

unset IFS

Code:

string='file\:/aaa/ccc/dd.jar, \^M'

IFS=':,' read -r _ substring _ <<<"$string"

echo "$substring"