HP NonStop G-Series - Manual (Page 125)

the file or files whose permissions you want to change. You can also use pattern-matching characters
to specify files.
The userclass-operation-permission code is defined as follows:
•
Use one or more of these letters to represent the user class:
User (owner) u
Group g
All others (besides owner and group) o
All (user, group, and all others) a
•
Use one of these symbols to represent the operation:
Add permission +
Remove permission -
Assign permission regardless of previous setting =
•
Use one or more of these letters to represent the type of permission:
Read r
Set user ID or group ID s
Write w
Execute x
Set sticky bit t
Changing File Permissions
This subsection shows you how to change the access permissions for a file. In the following example,
first enter the ls -l command to display the permissions for the file file1:
$ ls -l file1
-rw-r--r-- 1 larry system 101 Jun 5 10:03 file1
Note that the owner (larry) has read and write permissions, while the group and others have
only read permissions.
Now, enter the chmod command with the flags go+w. This command expands the permissions for
both the group (g) and for others (o) by adding write permission (+w) to file1 in addition to the
read permission they already have:
$ chmod go+w file1
Next, list the new permissions for the file:
$ ls -l file1
-rw-rw-rw- 1 larry system 101 Jun 5 10:03 file1
Note that you have given your group and all other system users write permission to file1.
Setting File and Directory Permissions (chmod) 125