LinuxSA Mailing list archives

  From: Andrew McDonnell <andymc73@yahoo.com.au>
  To  : <linuxsa@linuxsa.org.au>
  Date: Fri, 29 Jun 2001 11:32:35 +1000 (EST)

Re: for loop (bash) with spaces in filenames

On Thu, 28 Jun 2001 Benjamin Close wrote

<snipped>

> How about the simple approach where you tell the
> shell what to split on.
> ie:
> #!/bin/sh
> IFS=
> for i in `cat fred`
> do
> ....
> 
> 
> Note there is only a new line after the IFS=
> Which tells the shell to split only on new lines.

<snipped>

Confused; at first glance this sets IFS to nothing; eg

andrew@pd001738[bash]:~$ ABC=
andrew@pd001738[bash]:~$ echo X${ABC}X
XX

I found this in the bash manpage:

<quote>
The shell treats each character of IFS as a delimiter,
and splits the results of the other expansions into
words on these  characters.  If  IFS  is  unset,  or
its value is exactly  <space><tab><newline>,  the
default,  then   any sequence  of  IFS  characters
serves to delimit words.
</quote> 

There was some other stuff on IFS in arrays & $* etc

How do you get just the <cr> into the value of IFS?
I never seem to get the hang of inserting special
chars in Unix :-)>

Andrew


=====
-----------------------
www.comptroubsa.com
www.andrewmcdonnell.net

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