Check disk space


 
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# 1  
Old 01-11-2013
Check disk space

I am trying a script which will alert if disk space crosses some threshold, i googled it and got some scripts already, but they are not working with my server.

The problem is, my filesystem names are big, so the sizes are moving to the second line. just like below

any ideas? thanks in advance

Code:
user@host:/ta/folder/folder/tmp> df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/folder/folder/folder
                       18G  3.1G   14G  19% /
devtmpfs               32G  136K   32G   1% /dev
tmpfs                  32G     0   32G   0% /dev/shm
/dev/folder/folder      99M   50M   45M  53% /boot
/dev/folder/folder
                      4.0G  2.1G  1.7G  56% /tk


Last edited by Franklin52; 01-11-2013 at 05:42 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 01-11-2013
Searching these fora would have allowed you to at least find a starting point. However, try
Code:
$ awk 'NF<6 {getline y; $0=$0 FS y} {print $5}' file
Use%
19%
1%
0%
53%
56%

# 3  
Old 01-11-2013
need some more ideas

thanks for the help,
this i accomplished, but when the script triggers a mail, i want to include which is the filesystem crossed this space???

any ideas??

thanks in advance
# 4  
Old 01-11-2013
Print 5th & 6th column

Code:
$ awk 'NF<6 {getline y; $0=$0 FS y} {print $5,$6}' file

Code:
# df -h | awk 'NF<6 {getline y; $0=$0 FS y} {print $5,$6}'
Use% Mounted
31% /usr/bin
31% /usr/lib
31% /
98% /cygdrive/a
98% /cygdrive/b
31% /cygdrive/c
98% /cygdrive/d
98% /cygdrive/n

# 5  
Old 01-11-2013
Quote:
Originally Posted by karthikeayan
thanks for the help,
this i accomplished, but when the script triggers a mail, i want to include which is the filesystem crossed this space???

any ideas??

thanks in advance
My proposal was meant to be a starting point for you to help yourself, not a final solution to a problem that was only rudimentarily specified.
# 6  
Old 01-11-2013
I just wrote something working... give comments to improve myself!!!

Code:
#!/usr/bin/bash

df -k | grep -v -i "use" > /tmp/disk_space$$
awk '{
        if (NF < 2)
        {
                print $0
        }
        }' /tmp/disk_space$$ >> /tmp/file_info01$$

awk '{
        if (NF==5)
        {
                used_size=substr($4,0,length($4)-1);
                print used_size;
        }
     }' /tmp/disk_space$$ >> /tmp/file_info02$$

paste /tmp/file_info01$$ /tmp/file_info02$$ > /tmp/file_info11$$

awk '{
        if (NF==6)
        {
                used_size=substr($5,0,length($5)-1);
                print $1,used_size
        }
     }' /tmp/disk_space$$ >> /tmp/file_info12$$

cat /tmp/file_info11$$ /tmp/file_info12$$ > /tmp/file_info$$

awk '{
        if ($2>50)
        {
                print "Disk running out of space ------> ",$1,"------> "$2,"%"
        }
    }' /tmp/file_info$$

rm /tmp/file_info11$$
rm /tmp/file_info12$$
rm /tmp/file_info$$
rm /tmp/disk_space$$


Last edited by Scott; 01-11-2013 at 07:14 AM.. Reason: Use code tags, please...
# 7  
Old 01-11-2013
I'm not sure what you want to achieve with that many awk calls. Try to minimize those, and the costly fiddling with tmp files, almost everything can be done in one statement:
Code:
df -h|
awk  'NF<6 {getline y; $0=$0 FS y}
      NR>1 && $5+0>50 {print "disk running out of space:", $5, ": ", $6}
     '

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