NAME

       /proc/sysrq-trigger - SysRq function

DESCRIPTION

       /proc/sysrq-trigger (since Linux 2.4.21)
              Writing  a character to this file triggers the same SysRq function as typing ALT-SysRq-<character>
              (see the description of /proc/sys/kernel/sysrq).  This file is normally  writable  only  by  root.
              For  further  details  see  the  Linux  kernel source file Documentation/admin-guide/sysrq.rst (or
              Documentation/sysrq.txt before Linux 4.10).

SEE ALSO

       proc(5)