When installing extrae in nix, the mv and find commands are not installed in /usr/bin or /bin, so the build process fails but they are available in the $PATH. They command builtin looks for them in $PATH, so any aliases are not used, following the behavior of writing the absolute path. The command builtin is defined in the POSIX standard for the sh shell since the issue 4 (1994).
When installing extrae in nix, the
mvandfindcommands are not installed in /usr/bin or /bin, so the build process fails but they are available in the$PATH. Theycommandbuiltin looks for them in$PATH, so any aliases are not used, following the behavior of writing the absolute path. Thecommandbuiltin is defined in the POSIX standard for theshshell since the issue 4 (1994).