mirror of https://github.com/tLDP/LDP
43 lines
1.5 KiB
Bash
43 lines
1.5 KiB
Bash
#!/bin/sh
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# --> Comments added by the author of this document marked by "# -->".
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# --> This is part of the 'rc' script package
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# --> by Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>.
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# --> This particular script seems to be Red Hat / FC specific
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# --> (may not be present in other distributions).
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# Bring down all unneeded services that are still running
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#+ (there shouldn't be any, so this is just a sanity check)
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for i in /var/lock/subsys/*; do
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# --> Standard for/in loop, but since "do" is on same line,
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# --> it is necessary to add ";".
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# Check if the script is there.
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[ ! -f $i ] && continue
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# --> This is a clever use of an "and list", equivalent to:
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# --> if [ ! -f "$i" ]; then continue
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# Get the subsystem name.
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subsys=${i#/var/lock/subsys/}
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# --> Match variable name, which, in this case, is the file name.
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# --> This is the exact equivalent of subsys=`basename $i`.
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# --> It gets it from the lock file name
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# -->+ (if there is a lock file,
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# -->+ that's proof the process has been running).
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# --> See the "lockfile" entry, above.
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# Bring the subsystem down.
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if [ -f /etc/rc.d/init.d/$subsys.init ]; then
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/etc/rc.d/init.d/$subsys.init stop
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else
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/etc/rc.d/init.d/$subsys stop
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# --> Suspend running jobs and daemons.
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# --> Note that "stop" is a positional parameter,
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# -->+ not a shell builtin.
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fi
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done
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