Regular Expression to print only executable not full path

Question

I have a set of key/value pairs that lists executables using the fully qualified name as follows:

  ["exec"] = "/share/home/00288/tg455591/NAMD_2.8b3/NAMD_2.8b3_Linux-x86_64-MVAPICH-Intel-Ranger/namd2",

However, I would like to take out the directory location and only print the executable, such as the following:

  ["exec"] = "namd2",

How can I construct a regular expression to make this change? Keep in mind all the executables in the file are different, but they have similar format. The size of the file is approximately 6000 lines. Thanks in advance.

I think `[^/]*$` will match it, but it depends on the flavor of regex. What tool are you using? — Beta, Apr 16 '13 at 02:36
I don't split on the / because the number of / varies from line to line — amber4478, Apr 16 '13 at 02:38
For clarification, you need `"/share/home/00288/tg455591/NAMD_2.8b3/NAMD_2.8b3_Linux-x86_64-MVAPICH-Intel-Ranger/namd2"` to match to `namd2` only, isn't it? Do you have to match the _key_ `["exec"]` as well? — nqngo, Apr 16 '13 at 02:39
@amber4478 - `$array = explode('/', $string); $exec = end($array);` — Joseph Silber, Apr 16 '13 at 02:40
That would be OK. I am using TextWrangler or TextMate, but it wouldn't really be an issue to open a terminal and use sed — amber4478, Apr 16 '13 at 02:59

score 1 · Answer 1 · answered Apr 16 '13 at 03:13

1

This regular expression did the trick:

(?<=\["exec"\] = ").+?(?=[^/]+?(?:\.\w+)?")

Replace with:

\1\2

answered Apr 16 '13 at 03:13

amber4478

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Casimir et Hippolyte · Answer 2 · 2013-04-16T03:43:36.200

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try this to find :

(?<="exec"] = ")[^"]*?/([^/"]+)(?=")

and this to replace :

\1

(or $1)

edited Apr 16 '13 at 03:43

answered Apr 16 '13 at 03:19

Casimir et Hippolyte

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score 0 · Answer 3 · answered Apr 16 '13 at 03:03

0

If I understand the problem correctly, this sed command will do the trick:

sed 's|= .*/|= "|'

answered Apr 16 '13 at 03:03

Beta

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sed 's|= .*/|= "\' lariatData-sgeT-2012-05-01_2.lua sed: 1: "s|= .*/|= "\": unterminated substitute in regular expression is the error I get when I try the sed command – amber4478 Apr 16 '13 at 03:09
@amber4478: It's `"|'`, not `"\'`. – Beta Apr 16 '13 at 03:21

Regular Expression to print only executable not full path

3 Answers3