Administration Reference

up

Purpose

Recursively copies the contents of a source directory to a destination directory.

Synopsis

up [-v]  [-1]  [-f]  [-r]  [-x]  <source directory>  <destination directory>

This command does not use the syntax conventions of the AFS command suites. Provide the command name and all option names in full.

Description

The up command recursively copies the files and subdirectories in a specified source directory to a specified destination directory. The command interpreter changes the destination directory and the files and subdirectories in it in the following ways:

• It copies the source directory's access control list (ACL) to the destination directory and its subdirectories, overwriting any existing ACLs.

• If the issuer is logged on as the local superuser root and has AFS tokens as a member of the group system:administrators, then the source directory's owner (as reported by the ls -ld command) becomes the owner of the destination directory and all files and subdirectories in it. Otherwise, the issuer's user name is recorded as the owner.

• If a file or directory exists in both the source and destination directories, the source version overwrites the destination version. The overwrite operation fails if the first (user) w (write) mode bit is turned off on the version in the destination directory, unless the -f flag is provided.

• The modification timestamp on a file (as displayed by the ls -l command) in the source directory overwrites the timestamp on a file of the same name in the destination directory, but the timestamp on an existing subdirectory in the destination directory remains unchanged. If the command creates a new subdirectory in the destination directory, the new subdirectory's timestamp is set to the time of the copy operation, rather than to the timestamp that the subdirectory has in the source directory.

The up command is idempotent, meaning that if its execution is interrupted by a network, server machine, or process outage, then a subsequent reissue of the same command continues from the interruption point, rather than starting over at the beginning. This saves time and reduces network traffic in comparison to the UNIX commands that provide similar functionality.

The up command returns a status code of 0 (zero) only if it succeeds. Otherwise, it returns a status code of 1 (one).

Options

-v

Prints a detailed trace to the standard output stream as the command runs.

-1

Copies only the files in the top level source directory to the destination directory, rather than copying recursively through subdirectories. The source directory's ACL still overwrites the destination directory's. (This is the number one, not the letter l.)

-f

Overwrites existing directories, subdirectories, and files even if the first (user) w (write) mode bit is turned off on the version in the destination directory.

-r

Creates a backup copy of all files overwritten in the destination directory and its subdirectories, by adding a .old extension to each filename.

-x

Sets the modification timestamp on each file to the time of the copying operation.

source directory

Names the directory to copy recursively.

destination directory

Names the directory to which to copy. It does not have to exist already.

Examples

The following command copies the contents of the directory dir1 to directory dir2:

   % up dir1 dir2
   

Privilege Required

The issuer must have the a (administer) permission on the ACL of both the source and destination directories.