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Quotas

Create, edit change ownership

QuestionAnswer
Types of limits that an administrator can set limits on the number of files and directories users can create Hard and Soft limit
Edit quota options in: /etc/fstab
Implements quotas for users (/etc/fstab) userquota
implements quotas for group grpquota
Create quota files (in directory where the partition is mounted) aguota.user aguota.group
Command to create the aguota.user and aquopta.group files (after placing entries in /etc/fstab) quotacheck -mavug
quotacheck Options:Updates the quota database even if other processes are running on the filesystem -m
quotacheck Options: Updates the quota database -a
quotacheck Options: Verbose mode -v
quotacheck Options: Run the database for users and groups -u and -g
Enables quotas for the mounted filesystem quotaon
Enables all mounted filesystems in /etc/mtab quotaon -a
Disable quotas for the mounted filesystem quotaoff
Display a summary of disc usage and quotas for the specified filesystem – number of files - used space by user repquota
repquota Options: Print all quotas even if there is no usage repquota -v
repquota Options: Does not resolve user and group names to speed printing repquota -n
repquota Options: Reports for user and group repquota -u -g
repquota Options: Gives info for all filesystems listed in /etc/mtab repquota -a
Open and edit a user’s quota, a group quota or change a grace period edquota
edquota Options: Change the users quota edquota -u
edquota Options: change the groups quota edquota -g
edquota Options: change the grace period edquota -t
Display the current user’s quota quota
quota Options: Show current usage, the hard and soft quota for blocks and inodes quota -v
quota Options: Show the quota for a user quota -u
quota Options: Show the quota for a group quota -g
Change ownership of a file or directory chown
Change ownership recursively chown -R
Change file ownership only chown user
Change user and group ownership chown user:group
Change the group ownership only chown :group
To change the group ownership for the /hr/personnel file to mgmt – use any of the following to change group ownership of the file to mgmt1 chgrp mgmt1 /hr/personnel chown .mgmt1 /hr/personnel chown :mgmt1 /hr/personnel
Assign user ownership to bcassini and group ownership to the hr group of the /hr directory and all its sub-directories and files chown –R bcassini:hr /hr
To change the owner and group of a file or directory with one command using chown chown jonadream.users /tmp/schedule.txt
Created by: johnadream