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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-07-16 12:23:18 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-07-16 12:23:18 +0200 |
| commit | a9562222f76ad3ed3c310403237fa3690914c582 (patch) | |
| tree | ed352da4fe3bdd0afb49abe692355c95fa1a4346 | |
| parent | e732a1c21d811912192457491dbfe7870456f7f4 (diff) | |
| download | man-pages-a9562222f76ad3ed3c310403237fa3690914c582.tar.gz | |
kill.2: Clarify the meaning if sig==0
Reported-by: John Wiersba <jrw32982@yahoo.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/kill.2 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/man2/kill.2 b/man2/kill.2 index 507e1bf986..acd53fe47a 100644 --- a/man2/kill.2 +++ b/man2/kill.2 @@ -81,10 +81,10 @@ except for process 1 (\fIinit\fP), but see below. If \fIpid\fP is less than \-1, then \fIsig\fP is sent to every process in the process group whose ID is \fI\-pid\fP. .PP -If \fIsig\fP is 0, then no signal is sent, but error checking is still -performed; +If \fIsig\fP is 0, then no signal is sent, +but existence and permission checks are still performed; this can be used to check for the existence of a process ID or -process group ID. +process group ID that the caller is permitted to signal. For a process to have permission to send a signal it must either be privileged (under Linux: have the |