loop problems

[ryanc2]

I need to process a loop continuously - once for each value in a file and then start over with the first value again.

list.txt has two values in it:

file1
file2

I need have a continous loop processing once for file1, then file2, then file1, then file2, etc. Currently, it processes file 1, then file2, then exits.

If I start with:

while :
do
for f in `cat list.txt`
do
commands...
done
done

It runs through successfully for file1, then file2, then reads file1 and file2 together on the third loop.

Any help would be appreciated.

 

[PHV]

Try something like this:

mylist=`cat list.txt`
while :
do
     for f in $mylist
     do
          commands...
     done
done

Hope This Help
PH.

 

[ryanc2]

Thanks for the quick response. However, I'm still having the same problem. Works for the first pass, but the third pass reads line 1 and line 2 together from the list.

 

[PHV]

I guess you change the value of the IFS variable within the inner loop, don't you ?

Hope This Help
PH.

 

[Draxenato]

Not an elegant solution I know, but what about having the script rerun itself in the last line ?

 

[aigles]

Give us more infos about commands you execute in the internal loop.

Jean Pierre.

 

[Ygor]

This gets around any IFS problems, (assuming the script has no parameters)...
[tt]
set `cat list.txt`
while :
do
for f
do
commands...
done
done[/tt]

 

[ryanc2]

Thanks Ygor! That seemed to do it.

Thanks to everyone for their help...this forum is great!

 

[bigoldbulldog]

here's another of many ways:

while :
do
while read f
# commands...
done < list.txt
done

Cheers,
ND

bigoldbulldog@hotmail.com