Linux/Unixshell script monitors available disk space

Linux/Unixshell scripts monitor disk space available Linux shell scripts that monitor disk free space, which are essential for system administrators or DBAs. The following is a sample shell script for monitoring disk space for your reference. 1. monitor the free space of the disk... linux/Unix shell scripts monitor disk space available Linux shell scripts that monitor disk free space, which are essential for system administrators or DBAs. The following is a sample shell script for monitoring disk space for your reference. 1. monitor the free space of the disk. shell script [python] robin @ SZDB :~ /Dba_scripts/custom/bin> more ck_fs_space.sh #! /Bin/bash # Scripts + # check file sysysytem space by threshold | # Filename: ck_fs_space.sh | # Desc: | # The script use to check file system space by threshold | # Once usage of the disk beyond the threshold, a mail alert will be sent. | # Deploy it by crontab. e.g. per 15 min | # Usage: | #. /ck_fs_space.sh | #|# Author: Robinson | # samples + ## ----------------------------- # Set environment here # ---------------------------- if [-f ~ /. Bash_profile]; then .~ /. Bash_profile fi export host = 'hostname' export mail_dir =/users/robin/dba_scripts/sendEmail-v1.56 export mail_list = 'Robinson. cheng@12306.com 'export mail_fm = 'Oracle @ szdb.com 'tmpfile =/tmp/ck_fs_space.txt alert = n # handle # Check the parameter # ------------------------------ max = $1 if [! $ {2}]; then echo "No filesystems specified. "echo" Usage: ck_fs_space.sh 90 // u01 "exit 1 fi # -------------------------------- # Start to check the disk space # while [" $ {2} "] do percent = 'df-P $ {2} | tail-1 | awk '{print $5}' | cut-d '%'-f1 'if ["$ {percent}"-ge "$ {max}"]; then alert = y break fi; shift done ;#--------------------------------------------- --------------------------- # When a partition was abve the threshold then send mail with df output # else if [! "$ {Alert}" = 'n']; then df-h> $ tmpfile mail_sub = "Disk usage beyond the threshold $ {max} on $ {host }. "$ mail_dir/sendEmail-u $ {mail_sub}-f $ mail_fm-t $ mail_list-o message-file =$ {tmpfile} fi; exit; 2. Script Description a. This script uses the sendEmail tool to send emails. B. The Usage is "Usage: ck_fs_space.sh 90 // u01 ". C. a while loop is used in the script to determine whether the free space of all specified partitions exceeds the threshold value one by one. D. send an email when the threshold value is exceeded and attach the disk space usage of the current server.