Example: Customized Backup Command
The following script is an example of a custom backup command that does pre- and post-processing. This script locks a ClearCase VOB (version object base), does the backup, then unlocks the VOB.
#!/bin/sh
# export the SHELL that we are going to use
SHELL=/bin/sh
export SHELL
# export the correct PATH so that all the required binaries can be
found
case $0 in
/* ) PATH=/usr/atria/bin:/bin:/usr/bin:`/bin/dirname $0`
c=`/bin/basename $0`
;;
* )PATH=/usr/atria/bin:/bin:/usr/bin:/usr/sbin
c=$0
;;
esac
export PATH
# These are the valid statuses which save reports on completion of
the backup
statuses="
failed.
abandoned.
succeeded.
completed savetime=
"
# Perform the PRECMD (Lock VOB)
/usr/atria/bin/cleartool setview -exec
"/usr/atria/bin/cleartoollock -c \
`VOB backups in progress' -vob /cm_data/mis_dev" magic_view >
/tmp/voblock.log 2>&1
# Perform backup on client
save "$@" > /tmp/saveout$$ 2>&1
# cat out the save output
cat /tmp/saveout$$# search for the backup status in the output reported by save
for i in ${statuses}; do
result=`grep "${i}" /tmp/saveout$$`
if [$? != 0]; then
echo ${result}
fi
done
# Perform the POSTCMD (Unlock VOB)
/usr/atria/bin/cleartool setview -exec
"/usr/atria/bin/cleartoolunlock -vob
/cm_data/mis_dev" \
magic_view > /tmp/vobunlock.log 2>&
# make sure to gracefully exit out of this shell script
exit 0
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