[johnsonbryce]

I need to write a function that will work in sh/ksh shell that will test to see if a file has already been opened for writting by another user

has anyone written something like this?

by the way - i don't have execute permissions on fuser and lsof not on system

[whgoodman]

If you have the file descriptor number then this is a function built-in to ksh....

-t fildes
True, if file descriptor number fildes is open and associated
with a terminal device.