pseudoterminal master and slave NAME ptmx, pts - pseudoterminal master and slave DESCRIPTION The file /dev/ptmx (the pseudoterminal...pseudoterminal master and slave NAME ptmx, pts - pseudoterminal master and slave DESCRIPTION The file /dev/ptmx (the pseudoterminal......that device. It is equivalent to opening the pseudoterminal multiplexor device open("/dev/ptmx", O_RDWR); on Linux systems, though the pseudoterminal multiplexor device is locat…...is opened by calling posix_openpt (3). (This function opens the master clone device, /dev/ptmx ; see pts (4).) After performing any program-specific initializations, changing th…...ng the pseudoterminal multiplexor device: int posix_openpt(int flags) { return open("/dev/ptmx", flags); } Calling posix_openpt () creates a pathname for the corresponding pseud…...pts (4) device open when switching to another mount namespace that uses a different /dev/ptmx instance may still accidentally find that a device path of the same name for that f…...pts (4) device open when switching to another mount namespace that uses a different /dev/ptmx instance may still accidentally find that a device path of the same name for that f…mount a filesystem NAME mount - mount a filesystem SYNOPSIS mount [ -h | -V ] mount [ -l ] [ -t fstype ] mount -a [ -fFnrsvw ] [ -t fstype ] [ -O optlist ] mount [ -fnrsvw ] [ -o o…