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Working With Directories

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When a user logs on as USER.ACCT,GROUP, the current working directory is initialized to /ACCT/GROUP. If a user creates a hierarchical directory through the FTP/iX MKDIR DIR1 command and then changes to that directory with the FTP/iX CD command, the new working directory will be /ACCT/GROUP/DIR1. The current working directory can be identified with the FTP/iX command PWD.

To change directories on the local system, use the FTP/iX LCD command. The LCD command will automatically preface (./) to the given name if it does not start with a dot or a slash. This command identifies the new current directory.

To remove directories, use the FTP/iX rmdir command. The (./) is prefaced to the given file name if it does not start with a dot or a slash.

The rmdir will not work on MPE/iX groups or accounts. Likewise, mkdir creates new directories, not groups or accounts.

Note that (.) refers to the current directory, (..) refers to the directory above the current directory, and (/) is used as the separator in the path name. Thus if a file name starts with (.) or (..), the path traversed to find the file is relative to the current directory, whereas if a file name starts with (/), the path is independent of the current directory and refers to the absolute path name.

To change to a different directory outside of the FTP/iX subsystem in the POSIX name space, use the CHDIR command.

Commands

CHDIR

Changes the process's current working directory (CWD) on the local system.

Syntax

CHDIR [ [DIR=]dir_name] [;SHOW | NOSHOW]

Parameters
dir_name

The name of the new current directory (optional). The dir_name is assumed to be an MPE/iX name. HFS-named directories can be changed if dir_name starts with a dot (.) or a slash (/). The dir_name may not end in a slash and wild carding is not allowed. If dir_name is omitted, your logon directory is used. Your logon directory is your logon group, in the form:

/LOGON_ACCOUNT/LOGON_GROUP

whereas if you need to change to a different MPE/iX group name, use the CHGROUP command.

CHGROUP

Switches you from the current group to another group within the logon account to which you are allowed access (NM capability required). This command is not executable through the FTP command prompt.

Syntax

CHGROUP [ [GROUP=]groupname] [/grouppass]

Parameters
groupname

The name of the group to which you will be switched. If you omit this parameter, you will be switched to the home group.

grouppass

The password of the group you are switching to, if it is assigned a password. In a session, if the target group has a password and you fail to supply one on the command line, MPE/iX will prompt you to enter one. You have three tries to enter the correct password before the command fails.

In a batch job, if the target group has a password and you fail to supply one, MPE/iX issues an error message "INCORRECT PASSWORD (CIERR 1441)" and the job fails.

In either case, when you switch to your home group, you may omit the password.

Refer to the MPE/iX Commands Reference Manual for command syntax and usage.

Command Line (CI) Examples

Example 1:


  :showme
  USER: #S26,MANAGER.SYS,PUB      (NOT IN BREAK)

  :showvar HPCWD
  HPCWD = /SYS/PUB

Example 2:


  :showme
  USER: #S26,MANAGER.SYS,PUB      (NOT IN BREAK)

  :showvar HPCWD
  HPCWD = /SYS/PUB

  :chgroup work

  :showme
  USER: #S36,MANAGER.SYS,WORK      (NOT IN BREAK)

  :showvar hpcwd
  HPCWD = /SYS/WORK

Example 3:


  :showme
  USER: #S26,MANAGER.SYS,PUB      (NOT IN BREAK)

  :showvar HPCWD
  HPCWD = /SYS/PUB

  :chdir /SYS/WORK
  CWD is "/SYS/WORK".

  :SHOWME
  USER: #S36,MANAGER.SYS,WORK      (NOT IN BREAK)

  :showvar hpcwd
  HPCWD = /SYS/WORK

FTP Usage Examples

Example 1:

This is a sample of the operation of the POSIX current working directory "cwd" and the resulting file domain on the local system. In this example, the user on the local system, logged on as "MANAGER.SYS,PUB", enters FTP and then executes a ":CHDIR /SYS/WORK" command. The result is the local domain for files, FTP view will be "/SYS/WORK/" (POSIX syntax) or "WORK.SYS" (MPE syntax). 

  :ftp.arpa.sys
  File Transfer Protocol [A0006018] (C) Hewlett-Packard Co. 1990

  ftp> :showvar HPCWD
  HPCWD = /SYS/PUB

  ftp> :showme
  USER: #S27,MANAGER.SYS,PUB      (NOT IN BREAK)

  ftp> :chdir /SYS/WORK
  CWD is "/SYS/WORK".

  ftp> :showvar HPCWD
  HPCWD = /SYS/WORK

  ftp> :showme
  USER: #S27,MANAGER.SYS,PUB      (IN PROGRAM)

Example 2:

This is a sample of the operation of the POSIX current working directory "cwd" and the resulting file domain on the remote system. In this example, the user connects to the remote system with FTP, logged on as "MANAGER.SYS,PUB" and then executes a FTP "cd /SYS/WORK" command. The result is the remote domain for files FTP will view will be "/SYS/WORK" (POSIX syntax) or "WORK.SYS" (MPE syntax). 

  ftp> pwd
  257-"/SYS/PUB" is the current directory.
  257 ",MANAGER.SYS,PUB" is the current session.

  ftp> cd /SYS/WORK
  250 CWD file action successful.

  ftp> pwd
  257-"/SYS/WORK" is the current directory.
  257 ",MANAGER.SYS,PUB" is the current session.



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