File-roller issues...or why i prefer CLIs

Question

I tend to stay away from GUIs, and this is just one example of why i prefer the terminal and (in general) the arch way of doing things.
I used to be able to extract files with file-roller by right clicking on them and hitting "extract here". with archives that where multiple files (like R00,R01, etc) i could do this on any file and it worked. But i recently reinstalled my system, and its not worked on any files aside from the first one. It also doesnt work at all with zip files. The command line tools unrar and unzip both work just fine, so i guess file-roller is doing something wrong. I always end up with "CRC Failed".
Now, i dont really care about this specific issue because its just as easy for me to use the terminal to do this, and i probably will figure it out eventually (although any suggestions are welcome).  But i am wondering if anyone else has delt with something similar,
It seems like every time i switch over to using gnome i come across some issue like this, where the GUI just ends up complicating matters and i switch back to Awesome or window maker...but the other people who get on my computer from time to time really dont like that. It always leaves me asking the question "whats so hard about memorizing commands"... but i suppose thats for another forum, and another target audience.
Really what i'd like to know is do other Archers come across similar situations, and end up falling back to the "simpler" solutions? And if you have other people who use your computer do they find it frustrating when your logged in with AwesomeWM or some other less then newb-friendly WM. (i know you can just make them a user account, but say they just want to get on FireFox to look something up real quick).

Answer 1

extract () {
if [[ "$#" == "1" ]]; then
if [[ -f $1 ]]; then
case $1 in
*.tar.bz2) tar xvjf $1 ;;
*.tar.gz) tar xvzf $1 ;;
*.bz2) bunzip2 $1 ;;
*.rar) rar x $1 ;;
*.gz) gunzip $1 ;;
*.tar) tar xvf $1 ;;
*.tbz2) tar xvjf $1 ;;
*.tgz) tar xvzf $1 ;;
*.zip) unzip $1 ;;
*.Z) uncompress $1 ;;
*.7z) 7z x $1 ;;
*) echo "don't know how to extract '$1'..." ;;
esac
else
echo "'$1' is not a valid file!"
fi
else
echo "Must provide only one argument!"
fi
You can put that in your .bashrc and extract files with:
extract your-archive-file