[LU-20061] Add an option to hide/show root in lfs quota -a output

• Type: Improvement
• Resolution: Fixed
• Priority: Medium
• Fix Version/s: Lustre 2.18.0
• Severity: 3
• Assignee: Xiao Yang
• Reporter: Shuichi Ihara

Description

lfs quota -a is a useful option for printing quota settings and usage status for all users, groups, and project IDs.

# lfs quota -a -u /exafs/
Disk usr quotas
      Filesystem  quota_id  kbytes   bquota  blimit  bgrace   files   iquota  ilimit  igrace
         /exafs/      root 92192924        0       0       -    2223        0       0       -
         /exafs/      1000       0        0 1073741824       -       0        0       0       -
         /exafs/      1001       0        0 2147483648       -       0        0       0       -
         /exafs/      1002       0        0 3221225472       -       0        0       0       - 

However, in many cases, users want to ignore the quota information for root, since it is usually not relevant for quota administration and makes the output noisier.

It would be helpful to add an option to control whether the root entry is shown.
also It's better if root is hidden by default and would add an option to show full prints?