Learn to get the neat, clean and tabbed output of bdf. This left aligned and properly formatted bdf output is helpful for easier data processing.
Requirement :
bdf command output normally looks scattered especially when VG names are long. It will be difficult to grep out a proper pattern out of such output. Also, it’s not convenient to share this output over email/document when extra lines break exists.
In such scenarios, we need to have a properly formatted output of bdf. Also sometimes we require output with all its columns left-aligned.
Solution:
To remove line breaks from bdf output and get single row per entry output
See below normal bdf output. Note that the last 2 mount points have two-line entry since the filesystem column has long entry.
# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 2097152 737416 1349304 35% /
/dev/vg00/lvol1 1048576 206160 835928 20% /stand
/dev/vg00/lvol8 8388608 5475640 2902568 65% /var
/dev/vg00/lvol7 8388608 4655256 3713000 56% /usr
/dev/vg00/lvol4 2097152 1052368 1036888 50% /tmp
/dev/vg00/lvol6 8388608 6675168 1700112 80% /opt
/dev/vg00/lvol5 524288 49360 471256 9% /home
testserver01:/data
50574008 4541896 43463104 9% /data
/dev/vgdata/lvol1
918421504 591931608 306084338 66% /datastore
Now with inline awk we format the output to have one entry per row. Check below command output.
# bdf | awk '{if (NF==1) {line=$0;getline;sub(" *"," ");print line$0} else {print}}'
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 2097152 737408 1349312 35% /
/dev/vg00/lvol1 1048576 206160 835928 20% /stand
/dev/vg00/lvol8 8388608 5475640 2902568 65% /var
/dev/vg00/lvol7 8388608 4655256 3713000 56% /usr
/dev/vg00/lvol4 2097152 1052368 1036880 50% /tmp
/dev/vg00/lvol6 8388608 6675168 1700112 80% /opt
/dev/vg00/lvol5 524288 49360 471256 9% /home
testserver01:/data 50574008 4541896 43463104 9% /data
/dev/vgdata/lvol1 918421504 591931608 306084338 66% /datastore
To get left aligned bdf output
In the above output, columns are not aligned properly. We can even do that with the below argument.
# bdf | awk '///{printf("%-30s%-10s%-10s%-10s%-5s%-10sn",$1,$2,$3,$4,$5,$6)}'
/dev/vg00/lvol3 2097152 737408 1349312 35% /
/dev/vg00/lvol1 1048576 206160 835928 20% /stand
/dev/vg00/lvol8 8388608 5472792 2905392 65% /var
/dev/vg00/lvol7 8388608 4655256 3713000 56% /usr
/dev/vg00/lvol4 2097152 1052368 1036888 50% /tmp
/dev/vg00/lvol6 8388608 6675168 1700112 80% /opt
/dev/vg00/lvol5 524288 49360 471256 9% /home
Please make a note that this awk won’t remove any line breaks from the output. So one can combine (with pipe |) both awk to get left aligned output with line breaks removed.
Left-aligned output with line breaks removed!
# bdf | awk '{if (NF==1) {line=$0;getline;sub(" *"," ");print line$0} else {print}}' |awk '///{printf("%-30s%-10s%-10s%-10s%-5s%-10sn",$1,$2,$3,$4,$5,$6)}'
/dev/vg00/lvol3 2097152 737408 1349312 35% /
/dev/vg00/lvol1 1048576 206160 835928 20% /stand
/dev/vg00/lvol8 8388608 5481008 2897240 65% /var
/dev/vg00/lvol7 8388608 4655256 3713000 56% /usr
/dev/vg00/lvol4 2097152 1052368 1036888 50% /tmp
/dev/vg00/lvol6 8388608 6675168 1700112 80% /opt
/dev/vg00/lvol5 524288 49360 471256 9% /home
testserver01:/data 50574008 4541896 43463104 9% /data
/dev/vgdata/lvol1 918421504 591931608 306084338 66% /datastore
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