Hi Peter,
peter kvillegard wrote:
> test1(space)test2(tab)test3
>
> (where the "(space)" is an actual space etc)
> then:
>
> #!/bin/dash
>
> cat testfile |
> while IFS=' ' read col1 col2; do #an actual tab
In my mailreader, this shows as
"while" SP "IFS='" SP SP HT "'" SP "read" ...
In particular, IFS contains a space and a tab. So I would expect
"$col1" to be "test1" and "$col2" to be "test2 test3".
> echo $col1
> echo $col2
Because unquoted, $col2 is subject to word splitting. So echo
receives arguments "test2" "test3" and separates them with a space.
> done
>
> exit 0
>
> it gives the output:
>
> test1
> test2 test3
Looks good to me. ;-)
See http://unix.org/2008edition/ for details.
Hope that helps,
Jonathan
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