Please explain the exec () function and its family
May 21, 2020 · What is the exec() function and its family? Why is this function used and how does its work? Please anyone explain these functions.
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 …
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 …
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 …
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 …
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 …
understanding bash "exec 1>&2" command - Stack Overflow
Oct 1, 2012 · function example() { exec 1>&2 cat <<EOT Script requires at least one parameter. EOT exit 1 } As I understand, exec 1>&2 means that everything from this point one will be …
bash - sh command: exec 2>&1 - Stack Overflow
Aug 1, 2009 · What is exec stands for: exec is a built-in command in Linux. Different from the tradition command which just fork a sub shell process, exec could change current shell …
What's the difference between eval, exec, and compile?
Oct 12, 2018 · I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement. Can someone please explain the …
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?