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s/Unices/Unix systems/
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@ -139,7 +139,7 @@ A version of
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.BR flock (2),
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possibly implemented in terms of
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.BR fcntl (2),
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appears on most Unices.
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appears on most Unix systems.
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.SH NOTES
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.BR flock (2)
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does not lock files over NFS. Use
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@ -22,7 +22,7 @@
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.\" License.
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.\" Modified Sat Jul 24 21:27:01 1993 by Rik Faith (faith@cs.unc.edu)
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.\" Modified 14 Jun 2002, Michael Kerrisk <mtk-manpages@gmx.net>
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.\" Added notes on differences from other Unices with respect to
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.\" Added notes on differences from other Unix systems with respect to
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.\" waited-for children.
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.TH CLOCK 3 2002-06-14 "GNU" "Linux Programmer's Manual"
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.SH NAME
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@ -236,7 +236,7 @@ POSIX leaves the behavior of the combination of
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and
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.B O_TRUNC
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unspecified. On Linux, this will successfully truncate an existing
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shared memory object \(em this may not be so on other Unices.
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shared memory object \(em this may not be so on other Unix systems.
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.LP
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The POSIX shared memory object implementation on Linux 2.4 makes use
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of a dedicated file system, which is normally
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@ -126,7 +126,7 @@ that actually start/stop the individual services.
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.TP
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Note:
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The following description applies to System V release 4 based system, which
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currently covers most commercial Unices (Solaris, HP-UX, Irix, Tru64)
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currently covers most commercial Unix systems (Solaris, HP-UX, Irix, Tru64)
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as well as the major Linux distributions (RedHat, Debian, Mandrake,
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Suse, Caldera). Some systems (Slackware Linux, FreeBSD, OpenBSD)
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have a somewhat different scheme of boot scripts.
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@ -179,7 +179,7 @@ configuration files are used. These are located in a specific
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directory (\fI/etc/sysconfig\fR on RedHat systems) and are
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used by the boot scripts.
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In older Unices, these files contained the actual command line
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In older Unix systems, these files contained the actual command line
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options for the daemons, but in modern Linux systems (and also
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in HP-UX), these files just contain shell variables. The boot
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scripts in \fI/etc/init.d\fR \fBsource\fR the configuration
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@ -177,7 +177,7 @@ Up to and including Linux 2.2, the default behaviour for
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and (on architectures other than SPARC and MIPS)
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.B SIGBUS
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was to terminate the process (without a core dump).
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(On some other Unices the default action for
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(On some other Unix systems the default action for
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.BR SIGXCPU " and " SIGXFSZ
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is to terminate the process without a core dump.)
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Linux 2.4 conforms to the POSIX.1-2001 requirements for these signals,
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@ -211,16 +211,17 @@ on a sparc.)
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.B SIGEMT
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is not specified in POSIX.1-2001, but nevertheless appears
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on most other Unices, where its default action is typically to terminate
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on most other Unix systems,
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where its default action is typically to terminate
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the process with a core dump.
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.B SIGPWR
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(which is not specified in POSIX.1-2001) is typically ignored
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by default on those other Unices where it appears.
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by default on those other Unix systems where it appears.
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.B SIGIO
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(which is not specified in POSIX.1-2001) is ignored by default
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on several other Unices.
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on several other Unix systems.
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.SS "Real-time Signals"
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Linux supports real-time signals as originally defined in the POSIX.1b
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real-time extensions (and now included in POSIX.1-2001).
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@ -230,7 +231,7 @@ to 63
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.RB ( SIGRTMAX ).
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(Programs should always refer to real-time signals using notation
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.BR SIGRTMIN +n,
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since the range of real-time signal numbers varies across Unices.)
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since the range of real-time signal numbers varies across Unix systems.)
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.PP
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Unlike standard signals, real-time signals have no predefined meanings:
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the entire set of real-time signals can be used for application-defined
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