5.8.3. Sorting LVM Reports
Normally the entire output of the
pvscommand has to be generated and stored internally before it can be sorted and columns aligned correctly. You can specify the
--unbufferedargument to display unsorted output as soon as it is generated.
To specify an alternative ordered list of columns to sort on, use the
-Oargument of any of the reporting commands. It is not necessary to include these fields within the output itself.
The following example shows the output of the
pvscommand that displays the physical volume name, size, and free space.
pvs -o pv_name,pv_size,pv_freePV PSize PFree /dev/sdb1 17.14G 17.14G /dev/sdc1 17.14G 17.09G /dev/sdd1 17.14G 17.14G
The following example shows the same output, sorted by the free space field.
pvs -o pv_name,pv_size,pv_free -O pv_freePV PSize PFree /dev/sdc1 17.14G 17.09G /dev/sdd1 17.14G 17.14G /dev/sdb1 17.14G 17.14G
The following example shows that you do not need to display the field on which you are sorting.
pvs -o pv_name,pv_size -O pv_freePV PSize /dev/sdc1 17.14G /dev/sdd1 17.14G /dev/sdb1 17.14G
To display a reverse sort, precede a field you specify after the
-Oargument with the
pvs -o pv_name,pv_size,pv_free -O -pv_freePV PSize PFree /dev/sdd1 17.14G 17.14G /dev/sdb1 17.14G 17.14G /dev/sdc1 17.14G 17.09G