监视磁盘分区的bash脚本'；用法
测向显示 -bash-4.1# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda3 1918217320 1783986384 36791092 98% / tmpfs 16417312 0 16417312 0% /dev/shm /dev/sda1 482214 148531 308784 33% /boot /dev/sdb1 1922858352 1373513440 451669312 76% /disk2 -bash-4.1#df 已使用的文件系统1K块可用使用%已安装在 /dev/sda3 1918217320 1783986384 36791092 98%/ tmpfs 16417312 0 16417312 0%/dev/shm /dev/sda1 482214 148531 308784 33%/开机 /dev/sdb1 1922858352 1373513440 451669312 76%/disk2 我需要用bash脚本编写一个函数，如果分区100%满了，该函数将返回1。监视磁盘分区的bash脚本'；用法,bash,Bash,测向显示 -bash-4.1# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda3 1918217320 1783986384 36791092 98% / tmpfs 16417312 0 16417312 0% /dev/shm /dev/sda1 482214 14853
如何做到这一点？我可以使用什么命令来解析df的输出？类似于：
df | perl -wne 'if(/(\d+)%\s+(.*)/){print "$2 at $1%\n" if $1>90}'
df | perl -wne 'if(/(\d+)%\s+(.*)/){exit 1 if $1>99}'
disks_space() {
! df -P | awk '{print $5}' | grep -Fqx '100%'
}
换句话说，检查POSIX
df#!/bin/sh
# set -x
# Shell script to monitor or watch the disk space
# It will send an email to $ADMIN, if the (free available) percentage of space is >= 90%.
# -------------------------------------------------------------------------
# Set admin email so that you can get email.
ADMIN="root"
# set alert level 90% is default
ALERT=90
# Exclude list of unwanted monitoring, if several partions then use "|" to separate the partitions.
# An example: EXCLUDE_LIST="/dev/hdd1|/dev/hdc5"
EXCLUDE_LIST="/auto/ripper"
#
#::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
#
function main_prog() {
while read output;
do
echo $output
usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1)
partition=$(echo $output | awk '{print $2}')
if [ $usep -ge $ALERT ] ; then
if [ "$partition" == "/var" ]; then
# echo "Running out of space \"$partition ($usep%)\" on server $(hostname), $(date)"
echo "Running out of space \"$partition ($usep%)\" on server $(hostname), $(date)" | mail -s "Alert: Almost out of disk space $usep%" $ADMIN
# Extra bits you may wish to do -
#for FILE in `find $partition -size +1G -print`
#do
# echo $FILE
# DATE=`date +%Y-%m-%d_%H%M`
# filename=`echo ${FILE##*/}`
# mkdir /mnt/san/$hostname
# echo cp $FILE /mnt/san/$(hostname)/$filename-$DATE
# #echo > $FILE
#done
fi
fi
done
}
if [ "$EXCLUDE_LIST" != "" ] ; then
df -hP | grep -vE "^[^/]|tmpfs|cdrom|${EXCLUDE_LIST}" | awk '{print $5 " " $6}' | main_prog
else
df -hP | grep -vE "^[^/]|tmpfs|cdrom"| awk '{print $5 " " $6}' | main_prog
fi
#!/bin/bash
# This script takes:
# <host> <community> <megs>
snmpwalk="/usr/bin/snmpwalk"
snmpget="/usr/bin/snmpget"
function usage() {
echo "$0 localhost public 100"
echo "where localhost is server"
echo "public is snmp pass"
echo "100 is when it reaches below a 100Mb"
echo "-----------------------------------"
echo "define threshold below limit specific for partitions i.e. boot can be 50mb where as /var I guess we want to catch it at around 1 gig so"
echo "$0 localhost public 1024"
}
server=$1;
pass=$2
limit=$3;
errors_found="";
partitions_found="";
lower_limit=10;
graphtext="|"
if [ $# -lt 3 ]; then
usage;
exit 1;
fi
# takes <size> <used> <allocation>
calc_free() {
echo "$1 $2 - $3 * 1024 / 1024 / p" | dc
}
for partitions in $($snmpwalk -v2c -c $pass -Oq $server hrStorageDescr|grep /|egrep -v "(/mnt|/home|/proc|/sys)"|awk '{print $NF}'); do
if [[ $partitions =~ /boot ]]; then
limit=$lower_limit;
fi
if result=$($snmpwalk -v2c -c $pass -Oq $server hrStorageDescr | grep "$partitions$"); then
index=$(echo $result | sed 's/.*hrStorageDescr//' | sed 's/ .*//')
args=$($snmpget -v2c -c $pass -Oqv $server hrStorageSize$index hrStorageUsed$index hrStorageAllocationUnits$index | while read oid j ; do printf " $oid" ; done)
free=$(calc_free$args)
back_count=$(echo $partitions|grep -o "/"|wc -l)
if [[ $back_count -ge 2 ]]; then
gpartition=$(echo "/"${partitions##*/})
else
gpartition=$partitions;
fi
if [ "$free" -gt "$limit" ]
then
graphtext=$graphtext$gpartition"="$free"MB;;;0 "
#graphtext=$graphtext$partitions"="$free"MB;;;0 "
partitions_found=$partitions_found" $partitions ($free MB)"
else
graphtext=$graphtext$gpartition"="$free"MB;;;0 "
#graphtext=$graphtext$partitions"="$free"MB;;;0 "
errors_found=$errors_found" $partitions ($free MB)"
fi
else
graphtext=$graphtext$gpartition"="0"MB;;;0 "
#graphtext=$graphtext$partitions"="0"MB;;;0 "
errors_found=$errors_found" $paritions does_not_exist_or_snmp_is_not_responding"
fi
done
if [ "$errors_found" == "" ]; then
echo "OK: $partitions_found$graphtext"
exit 0
else
echo "CRITICAL: $errors_found$graphtext";
exit 2;
fi
下面是一个简单的脚本，用于检查是否已经有达到最大容量的磁盘，如果有，则返回/输出1
#!/bin/sh
CHECK=$(df -Ph | grep '100%' | xargs echo | cut -d' ' -f5)
if [ "$CHECK" == "100%"]
then
echo 1
else
echo 0
fi
试试这个：
df-Ph | grep-v“Use%”| sed的///g'| awk'$5>限制{print$1、$2、$3、$4、$5”；}'| column-t'限制的所有df-Ph
条目df-PhFilesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p1 92G 32G 56G 37% /
shmfs 98G 304K 98G 1% /dev/shm
192.168.1.1:/apache_cache 2.7T 851G 1.9T 32% /media/backup
/dev/dm-4 50G 49G 1.1G 98% /lun1
/dev/dm-7 247G 30G 218G 12% /lun2
df-Ph | grep-v“use%”| sed的///g'| awk'$5>20{print$1、$2、$3、$4、$5“%”}列-t/dev/cciss/c0d0p1 92G 32G 56G 37% /
192.168.1.1:/apache_cache 2.7T 851G 1.9T 32% /media/backup
/dev/dm-4 50G 49G 1.1G 98% /lun1
这里的
列-t folder_x_mb=$(($(stat -f --format="%a*%s" /folder_x)/10**6))
folder_y_mb=$(($(stat -f --format="%a*%s" /folder_y)/10**6))
folder_z_mb=$(($(stat -f --format="%a*%s" /folder_z)/10**6))
可能是
df | grep 100%df | awk'$5==“100%”{print$1}df-h | tail-n+2；awk'$5>=“90%”{print”警告：“$1”在“$5}”df！df-P | awk'$5==“100%”{exit 1}'grepsedawkperlstat5% folder_x_mb=$(($(stat -f --format="%a*%s" /folder_x)/10**6))
folder_y_mb=$(($(stat -f --format="%a*%s" /folder_y)/10**6))
folder_z_mb=$(($(stat -f --format="%a*%s" /folder_z)/10**6))