Shell Programming and Scripting

Hello ust3,

I would like to suggest you please provide complete information about what you are trying to achieve here, it is the simple error which you are getting. You are getting "f1: No such file or directory" because there will not be any file present into your path named f1(You should provide files which are present in the path where you are trying the loop, else provide the exact files path to it.). Without knowing the complete picture of requirement we all here could only guess and increase the number of posts in this thread, hope this helps.

Thanks,
R. Singh

May I doubt that it is wise to explore the limits of your system if you don't know why f1: No such file or directorypops up and how to remedy it?

If you really really want to try sth - at your own risk - here's small example of what you could do (with a recent shell)

Code:

for i in {5..15}; do eval exec "$i>f$i"; done
lsof -p$$
for i in {5..15}; do eval exec "$i>&-"; done

thanks reply ,

the script seems create file but not eating up open file , right ?
if I would like to eating up open file , how to modify it ? thanks

Your use of the phrase "eating up open file" is a technical term that is not clear to me (and, apparently, it is not clear to the other volunteers here who are trying to help you.

I gave you code that would read lines from files (but you would have to modify that script to use filenames that you had already created and had loaded with the data you wanted to read) and left a comment where you could fill in whatever code you wanted to use to eat your files. Ravinder showed you how to change that comment into a simple echo that would let the script read your files without actually doing anything with the data found in the files. RudiC gave you code that creates files and keeps file descriptor open (i.e., eats up open file descriptors) until the script terminates. Obviously, none of these meet your goal of eating your file(s).

If you would like to explain to us exactly what you are trying to do and why you are trying to do it, we may be able to help you achieve your goal.