Hp NonStop G-Series Uživatelský manuál stáhnout pdf (Strana 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

Groupg

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:

Readr

Set user ID or group IDs

Writew

Executex

Set sticky bitt

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

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Hp NonStop G-Series Uživatelský manuál Strana 125