set work dir aliases (4.[23] only)

[Marco Mercinelli]

These two aliases allow to set a directory as a default work directory,
so you it can be accessed immediatly.
Passing arguments you can select more than one work directory
(only for 4.[23] sites because of the symbolic link)

alias setwork   'rm -f ~/.wrk."\!*"; ln -s `pwd` ~/.wrk."\!*"'
alias work	'cd ~/.wrk."\!*";echo "work dir: `pwd`"'

Examples:

1 > pwd
/usr1/marco/doc/course/cc/lint
2 > setwork
3 > cd /usr1/marco/sources/newfonts
4 > setwork nf
5 > work
work dir: /usr1/marco/doc/couse/cc/lint
6 > work nf
work dir: /usr1/marco/sources/newfonts
8 >