[SOLVED] in removing some output parts in bash

mhs2 · 06-20-2014, 01:56 AM

Hello.

In bash, I have a variable which contains this:

Code:

lsb-release, libasound2 (>= 1.0.16), libatk1.0-0 (>= 1.12.4), libc6 (>= 2.17), libcairo2 (>= 1.2.4), libdbus-1-3 (>= 1.0.2), libdbus-glib-1-2 (>= 0.78), libfontconfig1 (>= 2.9.0), libfreetype6 (>= 2.2.1), libgcc1 (>= 1:4.1.1), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.37.3), libgtk2.0-0 (>= 2.24.0), libpango-1.0-0 (>= 1.22.0), libpangocairo-1.0-0 (>= 1.14.0), libstartup-notification0 (>= 0.8), libstdc++6 (>= 4.6), libx11-6, libxext6, libxrender1, libxt6

Let us say that i want to remove all the commas, brackets and what is inside the brackets so the output become like this:

Code:

lsb-release libasound2 libatk1.0-0 libc6 libcairo2 libdbus-1-3 libdbus-glib-1-2 libfontconfig1 libfreetype6 libgcc1 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk2.0-0 libpango-1.0-0 libpangocairo-1.0-0 libstartup-notification0 libstdc++6 libx11-6 libxext6 libxrender1 libxt6

How can i do that?
Thanks.

pan64 · 06-20-2014, 02:00 AM

probably sed, awk or perl? what do you prefer?

mhs2 · 06-20-2014, 02:50 AM

Will if you can do it using sed, i think it will be better.
Thanks a lot!

pan64 · 06-20-2014, 02:57 AM

sure, I can do it
sed -r 's/\s*\([^()]*\),\s*/ /g'

mhs2 · 06-20-2014, 03:34 AM

Thats what i get using that command:

Code:

lsb-release, libasound2 libatk1.0-0 libc6 libcairo2 libdbus-1-3 libdbus-glib-1-2 libfontconfig1 libfreetype6 libgcc1 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk2.0-0 libpango-1.0-0 libpangocairo-1.0-0 libstartup-notification0 libstdc++6 libx11-6, libxext6, libxrender1, libxt6

as you notice, some commas are still there, is there a better way to remove them?

Thanks for help!

pan64 · 06-20-2014, 03:47 AM

sed -r 's/\([^()]*\)//g;s/,//g;s/\s\s+/ /g'

grail · 06-20-2014, 03:56 AM

Or you could stay in bash as well:

Code:

shopt -s extglob

line='lsb-release, libasound2 (>= 1.0.16), libatk1.0-0 (>= 1.12.4), libc6 (>= 2.17), libcairo2 (>= 1.2.4), libdbus-1-3 (>= 1.0.2), libdbus-glib-1-2 (>= 0.78), libfontconfig1 (>= 2.9.0), libfreetype6 (>= 2.2.1), libgcc1 (>= 1:4.1.1), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.37.3), libgtk2.0-0 (>= 2.24.0), libpango-1.0-0 (>= 1.22.0), libpangocairo-1.0-0 (>= 1.14.0), libstartup-notification0 (>= 0.8), libstdc++6 (>= 4.6), libx11-6, libxext6, libxrender1, libxt6'

line="${line//(*([^)]))/}"

echo "${line//,/}"

mhs2 · 06-20-2014, 04:02 AM

It worked!

Thanks a lot guys.