
What does `exec "$@"` do? - Unix & Linux Stack Exchange
Sep 5, 2018 · The exec will replace the current process with the process resulting from executing its argument. In short, exec "$@" will run the command given by the command line parameters in such …
What are the uses of the exec command in shell scripts?
The exec built-in command mirrors functions in the kernel, there are a family of them based on execve, which is usually called from C. exec replaces the current program in the current process, without fork …
Difference between exec, execvp, execl, execv? - Stack Overflow
Apr 18, 2019 · Possible duplicate of What are the different versions of exec used for in C and C++?, What is the difference between the functions of the exec family of system calls like exec and …
What does set -e and exec "$@" do for docker entrypoint scripts?
Jan 4, 2018 · At the exec line entrypoint.sh, the shell running as pid 1 will replace itself with the command server start. This is critical for signal handling. Without using exec, the server start in the …
c - Differences between fork and exec - Stack Overflow
Oct 31, 2009 · The use of fork and exec exemplifies the spirit of UNIX in that it provides a very simple way to start new tasks. Note the use of the word task here, I have deliberately avoided using the …
command line - What does 'exec' do? - Ask Ubuntu
The exec you have executed is a shell built-in : $ type -a exec exec is a shell builtin Now from help exec : Replace the shell with the given command. Execute COMMAND, replacing this shell with the …
What is the difference between the functions of the exec family of ...
Dec 29, 2013 · exec () family of functions replaces existing process image with a new process image. This is a marked difference from fork () system call where the parent and child processes co-exist in …
Difference between "system" and "exec" in Linux? - Stack Overflow
Nov 8, 2009 · What is the difference between system and exec family commands? Especially I want to know which one of them creates child process to work?
What are the different versions of exec used for in C and C++?
Apr 24, 2011 · The differences are combinations of: L vs V: whether you want to pass the parameters to the exec'ed program as L: individual parameters in the call (variable argument list): execl(), execle(), …
shell - Understanding the -exec option of `find` - Unix & Linux Stack ...
Sep 1, 2017 · Using -exec in combination with sh -c The command that -exec can execute is limited to an external utility with optional arguments. To use shell built-ins, functions, conditionals, pipelines, …