• File Permissions
  • Basic Permissions
  • Managing Permissions
  • Advanced Permissions
• Data Transfers
  • Filezilla
  • scp command
  • rsync command

Every file and directory has permissions:

• User: read/write/execute
• Group: read/write/execute
• Other: read/write/execute

Permissions are given in the following format:

drwxrwxrwx 1 user group size date filename

Change the permissions of a file:

chmod u+x file_name

chmod g+w file_name

chmod o-r file_name

Change the group association of a file:

chgrp groupname file_name

GPFS ACLs

ACLs provide greater control over file permissions

# Get current permissions and store in acls file
mmgetacl /path/to/file > ~/acls.txt

# Edit acls file containing permissions
vim ~/acls.txt

# Apply new permissions to file
mmputacl -i ~/acls.txt /path/to/file

# Delete acls file
rm ~/acls.txt