Does an interactive bash process implicitly send any signal other than SIGHUP to its job?
Does an interactive bash process implicitly send any signal other than SIGHUP to its job? By implicitly, I mean not as a consequence of a user's request to send a signal to a job.
It helps to answer Does `disown` apply only to SIGHUP or some or all the signals?
bash signals job-control
edited yesterday
Stephen Kitt
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asked yesterday
Tim
26.2k74246455
add a comment |
Does an interactive bash process implicitly send any signal other than SIGHUP to its job? By implicitly, I mean not as a consequence of a user's request to send a signal to a job.
It helps to answer Does `disown` apply only to SIGHUP or some or all the signals?
bash signals job-control
edited yesterday
Stephen Kitt
165k24366445
asked yesterday
Tim
26.2k74246455
the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday
add a comment |
Does an interactive bash process implicitly send any signal other than SIGHUP to its job? By implicitly, I mean not as a consequence of a user's request to send a signal to a job.
It helps to answer Does `disown` apply only to SIGHUP or some or all the signals?
bash signals job-control
edited yesterday
Stephen Kitt
165k24366445
asked yesterday
Tim
26.2k74246455
Does an interactive bash process implicitly send any signal other than SIGHUP to its job? By implicitly, I mean not as a consequence of a user's request to send a signal to a job.
It helps to answer Does `disown` apply only to SIGHUP or some or all the signals?
bash signals job-control
bash signals job-control
edited yesterday
Stephen Kitt
165k24366445
asked yesterday
Tim
26.2k74246455
edited yesterday
Stephen Kitt
165k24366445
asked yesterday
Tim
26.2k74246455
edited yesterday
Stephen Kitt
165k24366445
edited yesterday
Stephen Kitt
165k24366445
edited yesterday
Stephen Kitt
165k24366445
165k24366445
asked yesterday
Tim
26.2k74246455
asked yesterday
Tim
26.2k74246455
asked yesterday
Tim
26.2k74246455
26.2k74246455
the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday
add a comment |
the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday
the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday
add a comment |
1 Answer
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Yes, there are a number of instances which can be found by searching calls to kill and killpg in jobs.c in the Bash source code.
One example is the handling of stopped jobs when exec is run, or when the shell exits: the shell sends SIGTERM and SIGCONT to all stopped jobs.
answered yesterday
Stephen Kitt
165k24366445
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sendingSIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).
– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What doesdisowndo? How does Bash know which processes are jobs it is supposed to manage?
– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
|
show 9 more comments
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
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votes
Yes, there are a number of instances which can be found by searching calls to kill and killpg in jobs.c in the Bash source code.
One example is the handling of stopped jobs when exec is run, or when the shell exits: the shell sends SIGTERM and SIGCONT to all stopped jobs.
answered yesterday
Stephen Kitt
165k24366445
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sendingSIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).
– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What doesdisowndo? How does Bash know which processes are jobs it is supposed to manage?
– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
|
show 9 more comments
Yes, there are a number of instances which can be found by searching calls to kill and killpg in jobs.c in the Bash source code.
One example is the handling of stopped jobs when exec is run, or when the shell exits: the shell sends SIGTERM and SIGCONT to all stopped jobs.
answered yesterday
Stephen Kitt
165k24366445
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sendingSIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).
– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What doesdisowndo? How does Bash know which processes are jobs it is supposed to manage?
– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
|
show 9 more comments
Yes, there are a number of instances which can be found by searching calls to kill and killpg in jobs.c in the Bash source code.
One example is the handling of stopped jobs when exec is run, or when the shell exits: the shell sends SIGTERM and SIGCONT to all stopped jobs.
answered yesterday
Stephen Kitt
165k24366445
Yes, there are a number of instances which can be found by searching calls to kill and killpg in jobs.c in the Bash source code.
One example is the handling of stopped jobs when exec is run, or when the shell exits: the shell sends SIGTERM and SIGCONT to all stopped jobs.
answered yesterday
Stephen Kitt
165k24366445
answered yesterday
Stephen Kitt
165k24366445
answered yesterday
Stephen Kitt
165k24366445
answered yesterday
Stephen Kitt
165k24366445
165k24366445
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sendingSIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).
– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What doesdisowndo? How does Bash know which processes are jobs it is supposed to manage?
– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
|
show 9 more comments
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sendingSIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).
– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What doesdisowndo? How does Bash know which processes are jobs it is supposed to manage?
– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
Thanks. (1) are such cases rare? (2) I don't know how to search for kill in the online hosted repository, even though you might have mentioned it before a little.
– Tim
yesterday
(1) As rare, or otherwise, as sending
SIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).– Stephen Kitt
yesterday
(1) As rare, or otherwise, as sending
SIGHUP. (2) Ctrl+F in your browser works wonders when searching in a single file ;-).– Stephen Kitt
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
Does disown make interactive bash not send signals other than SIGHUP to a job?
– Tim
yesterday
That question is nonsensical. What does
disown do? How does Bash know which processes are jobs it is supposed to manage?– Stephen Kitt
yesterday
That question is nonsensical. What does
disown do? How does Bash know which processes are jobs it is supposed to manage?– Stephen Kitt
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
Does this make sense? Does disown apply to SIGHUP only or also to some other signal(s)?
– Tim
yesterday
|
show 9 more comments
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the source code of bash does. e.g. interactive bash's SIGHUP handler does, huponexited and interactive bash's pre-termination cleanup does.
– Tim
yesterday
to bash user, what bash does is implicit. to bash, what the kernel does is implicit. I meant the former.
– Tim
yesterday