Regex with sed to parse archive name

Question

I'd like to parse different kinds of Java archive with the sed command line tool.

Archives can have the followin extensions:
.jar, .war, .ear, .esb

What I'd like to get is the name without the extension, e.g. for Foobar.jar I'd like to get Foobar.

This seems fairly simple, but I cannot come up with a solution that works and is also robust.

I tried something along the lines of sed s/\.+(jar|war|ear|esb)$//, but could not make it work.

possible duplicate of [Extract filename and extension in bash](http://stackoverflow.com/questions/965053/extract-filename-and-extension-in-bash) — devnull, Jan 22 '14 at 10:10

score 1 · Answer 1 · answered Jan 22 '14 at 10:09

1

Using sed:

s='Foobar.jar'
sed -r 's/\.(jar|war|ear|esb)$//' <<< "$s"
Foobar

OR better do it in BASH itself:

echo "${s/.[jwe]ar/}"
Foobar

answered Jan 22 '14 at 10:09

anubhava

The last one is quite elegant, but doesn't match `esb`. Also, you can use the `${parameter%word}` syntax to only strip the ending of a name. – Lev Levitsky Jan 22 '14 at 10:34

score 1 · Answer 2 · answered Jan 22 '14 at 10:11

1

You need to escape the | and the () and also add ' if you do not add option like -r or -E

echo "test.jar" | sed 's/\.\(jar\|war\|ear\|esb\)$//'
test

* is also not needed, sine you normal have only one .

answered Jan 22 '14 at 10:11

Jotne

fedorqui · Accepted Answer · 2014-01-22T10:16:44.097

1

You were nearly there:

sed -E 's/\.+(jar|war|ear|esb)$//' file

Just needed to add the -E flag to sed to interpret the expression. And of course, respect the sed 's/something/new/' syntax.

$ cat a
aaa.jar
bb.war
hello.ear
buuu.esb
hello.txt

$ sed -E 's/\.+(jar|war|ear|esb)$//' a
aaa
bb
hello
buuu
hello.txt

edited Jan 22 '14 at 10:16

answered Jan 22 '14 at 10:11

fedorqui

You also need to add the quotes `'` not only `-E` :) – Jotne Jan 22 '14 at 10:15
Errr yes haha, true :) – fedorqui Jan 22 '14 at 10:16
It can even be shorten some: `sed -E 's/\.+([jew]ar|esb)$//'` – Jotne Jan 22 '14 at 11:54

score 0 · Answer 4 · answered Jan 22 '14 at 10:29

0

On traditionnal UNIX (tested with AIX/KSH)

File='Foobar.jar'
echo ${File%.*}

from a list having only your kind of file

YourList | sed 's/\....$//'

form a list of all kind of file

YouList | sed -n 's/\.[jew]ar$/p
t
s/\.esb$//p'

answered Jan 22 '14 at 10:29

NeronLeVelu

4 Answers4