I'm working on the following script to parse some files for me. The script actually does what I want - I get the correct information in the correct files. It seems that the outermost for loop runs the correct number of times. The following nested loop runs more times than necessary, and the innermost loop runs infinitely.

#!/bin/bash for f in $HOME/configtool/interfaces/* do for d in $(cat $HOME/configtool/asrlist); do for n in $(cat $HOME/configtool/nodes); do grep $d $f | grep 'up\|down' >> $HOME/configtool/distill/$n done done done 

I'd like to avoid using a magic number to kill the loop if at all possible, due to scalabi

Does anyone have any ideas?

I'm working on the following script to parse some files for me. The script actually does what I want - I get the correct information in the correct files. It seems that the outermost for loop runs the correct number of times. The following nested loop runs more times than necessary, and the innermost loop runs infinitely.

#!/bin/bash for f in $HOME/configtool/interfaces/* do for d in $(cat $HOME/configtool/asrlist); do for n in $(cat $HOME/configtool/nodes); do grep $d $f | grep 'up\|down' >> $HOME/configtool/distill/$n done done done 

I'd like to avoid using a magic number to kill the loop if at all possible, due to scalability

Does anyone have any ideas?