To check disk space if it filled more that 90%

[inderPunj]

Hi,

i want to preparing a shell script. I want that the script check for all the mount points on my server and if any mount point have disk space full more than or equal to 90%, it alert me. so that i can take appropriate action. please help. Thanks .

[devils casper]

Use output of df -h command to check used space of all mounted partitions.

[inderPunj]

That's Okay, thanks for it.. But how the script will check and tell me that this particular partition filled more that 90%. Let i have these mount point /inder,/mnt/home and / . Let only /inder is filled upto95%, rest is fine and is not in critical state. How can the script check and print a message for me that /inder has 95% space filled ????

[devils casper]

Extract Mounted On and Use% columns from each line of df -h output using grep, sed or awk.
Just compare Use% value and display appropriate message. Check the manual of grep and sed.

man grep
man sed

[inderPunj]

Thanks...