Incorporate some ideas that came up during discussion with msmith.
This commit is contained in:
parent
1e3d7510d3
commit
fb1485d3e3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28143
@ -22,7 +22,7 @@
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" $Id$
|
||||
.\" $Id: periodic.8,v 1.1.1.1 1997/08/12 17:48:49 pst Exp $
|
||||
.\"
|
||||
.Dt periodic 8
|
||||
.Os FreeBSD 3.0
|
||||
@ -31,52 +31,69 @@
|
||||
.Nd run periodic system functions
|
||||
.Sh SYNOPSIS
|
||||
.Nm periodic
|
||||
.Ar path-to-directory
|
||||
.Ao
|
||||
.Cm daily | weekly | monthly |
|
||||
.Ar path Op path ...
|
||||
.Ac
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
program is intended to be called by cron(8) to execute shell scripts
|
||||
located in the specified directory.
|
||||
.Pp
|
||||
The arguments are as follows:
|
||||
One, and only one, of the following arguments should be specified:
|
||||
.Bl -tag -width Fl
|
||||
.It Cm daily
|
||||
Perform the standard daily periodic executable run.
|
||||
This usually occurs early in the morning (local time).
|
||||
.It Cm weekly
|
||||
Perform the standard weekly periodic executable run.
|
||||
This usually occurs on Sunday mornings.
|
||||
.It Cm monthly
|
||||
Perform the standard monthly periodic executable run.
|
||||
This usually occurs on the first day of the month.
|
||||
.It Ar path
|
||||
The
|
||||
.Ar path
|
||||
is a required argument. This is a path to a directory containing
|
||||
executable programs or shell scripts which are executed one by one
|
||||
in alphanumeric order.
|
||||
An absolute path to a directory containing a set of executables to be run.
|
||||
.El
|
||||
.Pp
|
||||
The
|
||||
.Nm
|
||||
program will run each executable file in the directory or directories
|
||||
specified. If a file does not have the executable bit set, it will be
|
||||
ignored silently.
|
||||
.Sh ENVIRONMENT
|
||||
The
|
||||
.Nm
|
||||
command sets the
|
||||
.Ev PATH
|
||||
environment to include all standard system
|
||||
directories. If entries are added, each entry
|
||||
must be responsible for configuring the appropriate environment.
|
||||
environment to include all standard system directories, but no additional
|
||||
directories, such as
|
||||
.Pa /usr/local/bin .
|
||||
If executables are added which depend upon other path components, each
|
||||
executable must be responsible for configuring its own appropriate environment.
|
||||
.Sh FILES
|
||||
.Bl -tag -width /etc/cron.d/monthly
|
||||
.Bl -tag -width /etc/crontab
|
||||
.It Pa /etc/crontab
|
||||
The
|
||||
.Nm
|
||||
program is typically called via entries in the system default cron table.
|
||||
.It Pa /etc/cron.d
|
||||
The default top-level directory where periodic script directories reside.
|
||||
If a simple name, rather than a complete path, is specified on the command
|
||||
line, this directory is checked for the corresponding argument.
|
||||
.It Pa /etc/cron.d/daily
|
||||
The default directory where script fragments that should be executed once
|
||||
a day (usually in the middle of the night) are placed.
|
||||
.It Pa /etc/cron.d/weekly
|
||||
The default directory where script fragments that should be executed once
|
||||
a eek (usually on a weekend night) are placed.
|
||||
.It Pa /etc/cron.d/monthly
|
||||
The default directory where script fragments that should be executed once
|
||||
a month (usually on the first day of the month) are placed.
|
||||
.It Pa <entry>
|
||||
Each file in the specified directory is checked for executability. If
|
||||
the execute bit is set, the entry is run.
|
||||
The top level directory containing
|
||||
.Pa daily ,
|
||||
.Pa weekly ,
|
||||
and
|
||||
.Pa monthly
|
||||
subdirectories which contain standard system periodic executables.
|
||||
.It Pa /etc/rc.conf
|
||||
The
|
||||
.Pa rc.conf
|
||||
system registry contains a variable
|
||||
.Va local_cron
|
||||
which may be configured to specify additional top level standard
|
||||
periodic directories, such as
|
||||
.Pa /usr/local/etc/cron.d
|
||||
and
|
||||
.Pa /usr/X11R6/etc/cron.d .
|
||||
.El
|
||||
.Sh EXAMPLES
|
||||
The system crontab should have entries for
|
||||
@ -87,9 +104,15 @@ similar to the following example:
|
||||
.Dl 0 2 * * * root periodic daily 2>&1
|
||||
.Dl 0 3 * * 6 root periodic weekly 2>&1
|
||||
.Dl 0 5 1 * * root periodic monthly 2>&1
|
||||
.Pp
|
||||
Additionally, the system registry will typically have a
|
||||
.Va local_cron
|
||||
variable reading:
|
||||
.Dl local_cron="/usr/local/etc/cron.d /usr/X11R6/etc/cron.d" # cron script dirs.
|
||||
.Sh SEE ALSO
|
||||
.Xr cron 8
|
||||
.Xr crontab 5 ,
|
||||
.Xr rc.conf 5 ,
|
||||
.Xr sh 1 ,
|
||||
.Rs
|
||||
.Sh DIAGNOSTICS
|
||||
|
@ -1,6 +1,6 @@
|
||||
#!/bin/sh -
|
||||
#
|
||||
# $Id$
|
||||
# $Id: periodic.sh,v 1.1.1.1 1997/08/12 17:48:49 pst Exp $
|
||||
#
|
||||
# Run nightly periodic scripts
|
||||
#
|
||||
@ -8,44 +8,80 @@
|
||||
# periodic /absolute/path/to/directory - run periodic scripts in dir
|
||||
#
|
||||
|
||||
if [ $# -lt 1 ] ; then
|
||||
usage () {
|
||||
echo "usage: $0 <directory of files to execute>" 1>&2
|
||||
echo "or $0 { daily | weekly | monthly }" 1>&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
if [ $# -lt 1 ] ; then
|
||||
usage
|
||||
fi
|
||||
|
||||
# If possible, check /etc/rc.conf to see if there are additional dirs to check
|
||||
if [ -r /etc/rc.conf ] ; then
|
||||
. /etc/rc.conf
|
||||
fi
|
||||
|
||||
dir=$1
|
||||
run=`basename $dir`
|
||||
|
||||
# If a full path was not specified, assume default cron area
|
||||
# If a full path was not specified, check the standard cron areas
|
||||
|
||||
if [ "$dir" = "$run" ] ; then
|
||||
dir="/etc/cron.d/$dir"
|
||||
fi
|
||||
dirlist=""
|
||||
for top in /etc/cron.d ${local_cron} ; do
|
||||
if [ -d $top/$dir ] ; then
|
||||
dirlist="${dirlist} $top/$dir"
|
||||
fi
|
||||
done
|
||||
|
||||
if [ ! -d $dir ] ; then
|
||||
( echo "$0: $dir not found"
|
||||
echo ""
|
||||
echo "usage: $0 <directory of files to execute>"
|
||||
) 1>&2
|
||||
exit 1
|
||||
fi
|
||||
# User wants us to run stuff in a particular directory
|
||||
else
|
||||
for dir in $* ; do
|
||||
if [ ! -d $dir ] ; then
|
||||
echo "$0: $dir not found" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
done
|
||||
|
||||
# Check and see if there is work to be done, if not, exit silently
|
||||
# this is not an error condition.
|
||||
|
||||
if [ "`basename $dir/*`" = "*" ] ; then
|
||||
exit 0
|
||||
dirlist="$*"
|
||||
fi
|
||||
|
||||
host=`hostname -s`
|
||||
echo "Subject: $host $run run output"
|
||||
|
||||
# Execute each executable file in the directory. If the x bit is not
|
||||
# Execute each executable file in the directory list. If the x bit is not
|
||||
# set, assume the user didn't really want us to muck with it (it's a
|
||||
# README file or has been disabled).
|
||||
|
||||
for file in $dir/* ; do
|
||||
if [ -x $file ] ; then
|
||||
$file
|
||||
fi
|
||||
done
|
||||
# We can't run scripts in order if we don't have sort and sed, which
|
||||
# might not be present on an embedded system.
|
||||
|
||||
if [ -x /usr/bin/sort -a -x /usr/bin/sed ] ; then
|
||||
|
||||
# Sort files in ascending alphanumeric order based on their basename
|
||||
# across all directories. XXX scripts better not have ':' in their names!
|
||||
for file in `(
|
||||
for dir in $dirlist ; do
|
||||
for file in $dir/* ; do
|
||||
echo $file | sed -e 's;\(.*\)/\([^/]*$\);\2:\1;'
|
||||
done
|
||||
done
|
||||
) | sort | sed -e 's; *\([^:]*\):\([^ ]*\);\2/\1 ;g' `; do
|
||||
if [ -x $file ] ; then
|
||||
$file
|
||||
fi
|
||||
done
|
||||
|
||||
else
|
||||
# Just run scripts in order in each directory.
|
||||
|
||||
for dir in $dirlist ; do
|
||||
for file in $dir/* ; do
|
||||
if [ -x $file ] ; then
|
||||
$file
|
||||
fi
|
||||
done
|
||||
done
|
||||
fi
|
||||
|
Loading…
Reference in New Issue
Block a user