...he controlling terminal. The setpgid () and getpgrp () calls are used by programs such as bash (1) to create process groups in order to implement shell job control. If the termi…...he controlling terminal. The setpgid () and getpgrp () calls are used by programs such as bash (1) to create process groups in order to implement shell job control. If the termi…...he controlling terminal. The setpgid () and getpgrp () calls are used by programs such as bash (1) to create process groups in order to implement shell job control. If the termi…...he controlling terminal. The setpgid () and getpgrp () calls are used by programs such as bash (1) to create process groups in order to implement shell job control. If the termi…...the one set by the child created by the first program: # ./ns_exec /proc/3550/ns/uts /bin/bash # uname -n # Executed in shell started by ns_exec bizarro Program source #define _…...te mount namespaces: $ readlink /proc/$$/ns/mnt mnt:[4026531840] $ sudo ./unshare -m /bin/bash # readlink /proc/$$/ns/mnt mnt:[4026532325] The differing output of the two readli…