using lockfiles in shell scripts (BASH) If you want to be 100% sure that only 1 process accesses a resource at the same time, you can use the command "lockfile". Lockfile creates a semaphore file [ ... ]

This article describes how to write, compile and execute a "Hello World" program in Fortran on Linux (RedHat / Centos / Fedora).  1. the prerequisitesa text editor of your choice (e.g. vi)a Fortr [ ... ]