This is a quick look at Bash’s exec builtin with a simple example. bash(1) explains exec [command]: If command is specified, it replaces the shell. No new process iscreated. This is mainly useful for wrapper scripts, where wedo not want to have a Bash process lingering around. Take this scriptnamed test: #!/bin/bashsleep inf When run as ./test, the current shell creates a new Bash instance (theinterpreter specified in the first line of the script with the shebang#!/bin/bash), and then creat...
