Unix Shell - Re: strip off trailing+leading blanks

Author

Re: strip off trailing+leading blanks

Stephane Chazelas

2006-09-22, 7:27 am

On 21 Sep 2006 08:07:08 -0700, Michael Paoli wrote:
[...]
> $ var=' foo bar baz '
> $ echo X"$var"X
> X foo bar baz X
> $ read var << __EOT__
> $ echo X"$var"X
> Xfoo bar bazX
> $
>
> Also note that expr is also built-in to many shells.

No, it's not, and when it is such as in the original ash where
you had to change the compile option to have a builtin expr,
then it's different from the expr you're used to.

You need "read -r" above.

--
Stephane