Help to Find out Available disk space

Linux and Unix-Like Red Hat
1

I need to find available disk space for /home.

$ df /home 
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mahhh/VolGroup11-LogVol00
                            32281452   45028  26034172  15% /

$df  /home  |tail -1| awk '{print $4}'
15%

The above result shows the Use% instead of Available as the df command output expands in 2 lines due to the Filesystem name

For single line output the results are fine... Any ideas how to get the available space in such cases ...

Thanks a lot for help

2

I'm pretty sure that the line doesn't get broken when piped.

The percentage displayed is the used percentage, not the Available percentage, perhaps you could subtract used from 100?

3

Force man df (Linux) to use POSIX mode, which is single-lined:

$ df /
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/system-root
                       2064208    490604   1468748  26% /
$ df -P /
Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/mapper/system-root   2064208    490604   1468748      26% /
1 Like
4

Thanks a lot :)..!!!

5

You can aslo ust -hT option. It will show in human readable format and the fs type too.

root@cpaneltest [~]# df -hT
Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
              ext3    7.7G  6.4G 1011M  87% /
/dev/sda1     ext3     99M   25M   70M  26% /boot
/usr/tmpDSK   ext3    485M   14M  447M   3% /tmp
root@cpaneltest [~]#
6

Hi ,

The above command is very helpful
In linux we use : df -P
Similarly for HP-UX using bdf ,how do we get in to POSIX mode.

Thanks in advance