Xshell 5 terminal backgrounds6/27/2023 ![]() kernel sends SIGHUP to the shell when real or pseudoterminal is disconnected/closed.Typically, the controlling process is your shell. to orphaned process group, when it becomes orphaned and it has stopped members.Ĭontrolling process is the session leader that established the connection to the controlling terminal.to foreground process group, when controlling process terminates.Kernel sends SIGHUP to other process groups: for pseudoterminal (pty): when last descriptor referencing master side of pty is closed, e.g.for real (hardware) terminal: when disconnect is detected in a terminal driver, e.g.Kernel sends SIGHUP to controlling process: ![]() Normally, foreground and background jobs are killed by SIGHUP sent by kernel or shell in different circumstances.
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