From: pere.noel@... (=?ISO-8859-1?Q?Une_b=E9vue?=)
Date: 2006-11-26T05:25:14+09:00
Subject: Re: [Mac OS X] having three ruby versions installed

Paul Lutus <nospam@nosite.zzz> wrote:

> > And because i want to use some java libs i need the third one jRuby.
> 
> Already addressed. Another advantage to the symlink approach is that, if you
> try:
> 
> $ ruby -version
> 
> The result will be consistent

ok for jruby itself i could do also a symlink.

but jruby by itself is useless

for example i want to install a gem into the ruby under jruby

the expended command line would be :

/Users/yvon/bin/jruby/bin/jruby /users/yvon/bin/jruby/bin/gem
--config-file /users/yvon/.jgemrc install <some gem>

with my alias i can do simply :

jgem install <some gem>

again, in my opinion, it is much more simpler to use (zsh) aliases than
symlinks because those aliases ar writen in a standard text file.

to terminate with (i don't want to convince you) from time to time, i
write ruby extension in C, the way i call the compiler is simply :

ycc file.c

because in the aliases file of zsh o do have a line like that :

alias ycc='cc -W -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes
-pedantic -stb=c99 -O2 -pipe -o '

i could do a symlink to a shell script called "ycc" and doing the above
line, i agree also, but quiet frankly it's so easy to add an alias into
the "aliases file of zsh...


i do have a lot like that, last example, some times from Terminal we
have to cd tp the ~/Desktop i do have an alias for that :

alias -g 'yd'='~/Desktop'

in the terminal i've only to enter :

cd yd


-- 
une b�vue