# @(#)spacewatch 1.1 /sccs/src/cmd/sadmin/shell/s.spacewatch
# Look at file system space
#! chmod +x ${file}
if [ $# -lt 1 ]
then
echo >&2 "Usage: $0 [ -w | -u ] [ -b<blocks> ] [ -i<inodes> ] file-system ...
For more detail type: prtdoc devcmd.$0"
exit 1
fi
takenfs=
blocks=500
inodes=100
output=stdout
dfout=`df | sed ' s/[ ():]\{1,\}/ /g
s/ blocks/ blocks/
s/ i-nodes/ i-nodes/'`
for i
{
case ${i} in
-w )
output=wall
continue
;;
-u )
output=users
continue
;;
-b?* )
blocks=`expr ${i} : '..\(.*\)' \| ${blocks}`
continue
;;
-i?* )
inodes=`expr ${i} : '..\(.*\)' \| ${inodes}`
continue
;;
-* )
echo >&2 "$0: illegal flag argument '${i}'"
exit 1
;;
ALL )
# all the remaining file systems take the last values
# of ${blocks} and ${inodes}
list="${list}
"`echo "${dfout}" | cut -f1 |
fgrep -xv "${takenfs}" |
sed "s;.*;\\$1 == \"&\" \&\& ( \\$3 <= ${blocks} || \\$5 <= ${inodes} );"`
break
esac
list="${list}
\$1 == \"${i}\" && ( \$3 <= ${blocks} || \$5 <= ${inodes} )"
takenfs="${takenfs}
${i}"
}
if [ -z "${list}" ]
then
exec $0
fi
out=`echo "${dfout}" | awk "${list}"`
if [ -z "${out}" ]
then
exit 0
fi
case ${output} in
wall )
echo "spacewatch: These file systems low on space!\\n${out}" |
/etc/wall
;;
users )
users=`who | cut -d' ' -f1`
msg=' is running out of room! '
for fs in `echo "${out}" | cut -f1`
{
stats=`echo "${dfout}" | grep "^${fs} " | cut -f3-`
case ${fs} in
/ | /usr | /usr/* | /tmp | /tmp/* )
echo "spacewatch: ${fs}${msg}${stats}" | /etc/wall
;;
* )
for user in `cut -d: -f1,6 /etc/passwd |
grep ":${fs}/" | cut -d: -f1 |
fgrep -x "${users}"`
{
echo "spacewatch: ${fs}${msg}${stats}" |
write ${user}
}
esac
}
;;
* )
echo "${out}"
esac
