Hello,

I got two problems:

1) I once saw some nifty tricks on how to use the output from one
command as input for a for/while loop (looping over each line
outputted). But I can't just find it any more. :-(

2) While trying to make it up myself I noticed something nasty: The
output is from a secure shell connection to a machine which uses CR/LF
as line terminator - something Z-Shell did not like all that much. Any
ideas on what to to with unneeded CR's?

Martin
--
mailto://krischik@users.sourceforge.net
Ada programming at: http://ada.krischik.com

On 17 Jul., 11:38, Martin Krischik <krisc...@users.sourceforge.net>
wrote:
> Hello,
>
> I got two problems:
>
> 1) I once saw some nifty tricks on how to use the output from one
> command as input for a for/while loop (looping over each line
> outputted). But I can't just find it any more. :-(

your_command | while read -r field1 field2 rest ; do : anything ; done

The number of variables to read is just an example, you may just
want a single variable.

> 2) While trying to make it up myself I noticed something nasty: The
> output is from a secure shell connection to a machine which uses CR/LF
> as line terminator - something Z-Shell did not like all that much. Any
> ideas on what to to with unneeded CR's?

Remove them from your data stream if you don't want them

your_command | tr -d '\015'

tr -d '\015' <your_data_file


Janis

> Martin
> --
> mailto://krisc...@users.sourceforge.net
> Ada programming at:http://ada.krischik.com

On Jul 17, 3:02 am, Janis <janis_papanag...@hotmail.com> wrote:
> On 17 Jul., 11:38, Martin Krischik <krisc...@users.sourceforge.net>
> wrote:
>
> > Hello,
>
> > I got two problems:
>
> > 1) I once saw some nifty tricks on how to use the output from one
> > command as input for a for/while loop (looping over each line
> > outputted). But I can't just find it any more. :-(
>
> your_command | while read -r field1 field2 rest ; do : anything ; done
>
> The number of variables to read is just an example, you may just
> want a single variable.
>
> > 2) While trying to make it up myself I noticed something nasty: The
> > output is from a secure shell connection to a machine which uses CR/LF
> > as line terminator - something Z-Shell did not like all that much. Any
> > ideas on what to to with unneeded CR's?
>
> Remove them from your data stream if you don't want them
>
> your_command | tr -d '\015'
>
> tr -d '\015' <your_data_file
>
> Janis
>
> > Martin
> > --
> > mailto://krisc...@users.sourceforge.net
> > Ada programming at:http://ada.krischik.com

One trick I have used in the past, not sure if it can work for you in
this example, But
I have used tee -a mylog.log ( append ) in the loop to get each loop
to write to the same file, eg:
for x in *
do
echo "File $x" |tee -a list.log
done

DANGER, this can make a big file if you run the same command using the
same file name for tee, option, use "$$.log" to make new file, just a
thought.

2 cents JB