Re: while read subcommand problem

Thank you Paul, Andreas and Kevin. Both the here document solution and the Process substitution solution both work well. I haven't had a good look to see the subtle differences between the two yet. Thank you again. -- View this message in context: http://www.nabble.com/while-read-subco

Re: while read subcommand problem

Andreas Schwab <[EMAIL PROTECTED]> wrote: > [EMAIL PROTECTED] (Paul Jarc) writes: >> while ...; do var=...; done <> $(generate-input-for-while) >> EOT >> use "$var" > > This has the disadvantage that generator and consumer no longer run > concurrently. Process substitution does not have this probl

Re: while read subcommand problem

[EMAIL PROTECTED] (Paul Jarc) writes: > The redirection applied to "read" in those examples would be applied > to your while loop instead. For example: > > while ...; do var=...; done < $(generate-input-for-while) > EOT > use "$var" This has the disadvantage that generator and consumer no longer

Re: while read subcommand problem

On Fri, 2 Mar 2007 03:04:14 -0800 (PST) rleeden <[EMAIL PROTECTED]> wrote: > > Hi, > > I struggled recently with a 'while read' type of loop in bash, where > after the loop had finished the variables used inside the loop are > not visible any more. I soon found the problem as explained in > sect

Re: while read subcommand problem

Richard van der Leeden <[EMAIL PROTECTED]> wrote: > The examples in the FAQ do work for the their examples, but I can't figure > out a clean way to implement it with a while loop when reading in lines from > the output of a piped command(s). The redirection applied to "read" in those examples woul

Re: while read subcommand problem

to use $var much later in the script as I would need the rest of the script kept in the { }. I suppose, after years of using the ksh I'm missing the (in my opinion) the clearer 'command | while read' solution. -- View this message in context: http://www.nabble.com/while-rea

Re: while read subcommand problem

rleeden <[EMAIL PROTECTED]> wrote: > NOTE: This is just an example, so I don't need alternatives for how I could > achieve the specifics shown above. I need to find a good solution where I > can do things with a file (whether it be with sed, awk, tail, head etc.) > then pipe it into a 'while read'

while read subcommand problem

echo "$i : $IP $HOSTNAME" done < tmpfile rm tmpfile echo echo "Total : $i" --------- Any ideas? -- View this message in context: http://www.nabble.com/while-read-subcommand-problem-tf3332952.html#a9267658 Sent from the Gnu - Bash mailing list archive at Nabbl