月份：五月 2012

We live and we learn
(With heart and soul and mind)
You can’t control your destiny

To fight to the death
(Right to the bitter end)
Doesn’t have to be the way

And from your mistakes
(You got to take the breaks)
You’ve got to find a better way

So follow your heart
(Your spirit guides you through)
To make this world a promised land

from Promised Land (Reprise)

from how split a string in bash?”

1. Use # and % modifiers to ${}. I’ll do my example on colon instead of space:
   

   $ x=a:b:c
$ echo ${x%:*}
a:b
$ echo ${x#*:}
b:c

   The bit after the % or # is more like a shell glob than a regular expression, in case you want to get fancy there.

2. #!/bin/bash

   thing="once upon a time"

   set -- $thing

   foo=$1
   shift
   bar=$@

   echo "foo: $foo"
   echo "bar: $bar"

   prints
foo: once
bar: upon a time