On 8/25/25 06:21, "W. Wesley Groleau (伟思礼)" wrote:
On Aug 24, 2025, at 17:01, Collin Funk <[email protected]> wrote:
For other fields I think that 'df | grep -v text' works fine.
No, because 'df' creates the layout and grep doesn't change it. When two or
more filesystems have names like
com.apple.TimeMachine.2025-08-24-205834.local@/dev/disk1s1
the ###-blocks column is about four dozen spaces away from the ones that have
names like /dev/disk1s5
And the size columns for my 4 TB SSD are each ten digits, so that even when I
full-screen the window (151-characters), the mount points have to wrap,
Especially the Time Machine snaphosts which have names like
/Volumes/com.apple.TimeMachine.localsnapshots/Backups.backupdb/MBP/2025-08-24-205834/Macintosh
SSD - Data
Formatting could be adjusted after filtering e.g. with `column -t`.
Example: I'm only showing ext4 (-t ext4) here ...
$ df -t ext4
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 20466256 17738772 1662524 92% /
/dev/sda5 619071928 152604252 466451292 25% /media/data
/usr/local/dev/sdb2 215635184 201885940 13732860 94% /usr/local/mnt/sdb2
... and filter out one with a longer device name:
$ df -t ext4 | grep -v local
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 20466256 17738772 1662524 92% /
/dev/sda5 619071928 152604252 466451292 25% /media/data
The Filesystem column is wider than necessary.
Now, correct this again:
$ df -t ext4 | grep -v local | column -t
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 20466256 17738772 1662524 92% /
/dev/sda5 619071928 152604252 466451292 25% /media/data
(okay, the column header "Mounted on" is messed up a bit.)
FWIW: you can control the columns and their order with 'df --output=...'.
P.S. Please don't post screenshots here. Instead - as we're talking about
textual output - you can paste the sample output directly in the mail.
Have a nice day,
Berny
