##*_ - whats this?

Arunprasad · #1 (**permalink**) 12-04-2008

Hi all,

could you please tell me whats this stands

##*_
0##*/

i knew this alone if some more is there please tell me that also.

borderblaster · #2 (**permalink**) 12-04-2008

what where you doing to get this output?

Arunprasad · #3 (**permalink**) 12-04-2008

the below is the statement in my script.

1. read -r variable < /path/file.txt
finalvar=${variable##*_}

2. MYNAME=${0##*/};

please let me know what it is actually doing.

Autocross.US · #4 (**permalink**) 12-04-2008

They are pattern matching arguments used to strip off certain portions of a string from either the front or end of the string.

Example:

Code:

$ >  STRING=this_test_string
$ >  echo ${STRING##*_}
string

$ >  DIR=/home/user1/test
$ > echo ${DIR##*/}
test

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