Increase productivity with FTP autologin and macros
You may use many macros under office packages. However, your ftp client also supports macros. You can use ~/.netrc - user configuration file. The .netrc file contains login and initialization information used by the auto-login process and stores macros information. It resides in the user's home directory.
Turn on FTP client auto login
You need to add username and password to file ~/.netrc. Open config file using a text editor such as vi:
$ vi ~/.netrc
Append or add following lines to it:
machine ftp.myserver.com login USERNAME password PASSWORD
Save file and exit to shell prompt. Make sure, only owner can read the file:
$ chmod 0600 ~/.netrc
To connect type command:
$ ftp ftp.myserver.com
FTP Macros
Now let us say every time you connected to ftp server you would like to switch to binary mode and turn off prompt as well as go to directory /pub/data/backup/rdbms/dump/. You can create a macro to automate all these three steps:
i) Open ~/.netrc ftp configuration file:
$ vi ~/.netrc
ii) Define a macro
You need to use the following syntax:
macdef macro-name1 command1 command2 macdef macro-name2 command1 command2
Please note that each macro definition ends with a null line (consecutive new line characters in a file or carriage returns from the terminal). There is a limit of 16 macros and 4096 total characters in all defined macros. Macros remain defined until a close command is executed.
Append following text to .netrc file:
macdef FOO bin prom cd /pub/data/backup/rdbms/dump/ ls
Save and close the file. Now connect to ftp server:
$ ftp ftp.myserver.com
Output:
Connected to ftp.myserver.com 220 ftp.myserver.com NcFTPd Server (licensed copy) ready. Remote system type is UNIX. Using binary mode to transfer files.
To execute a macro FOO type the command:
ftp> $ FOO
Output:
bin 200 Type okay. prom Interactive mode off. cd /pub/data/backup/rdbms/dump/ 250 "/pub/data/backup/rdbms/dump/" is new cwd. ftp> ls
Further readings:
=> ftp command man page
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Tags: .netrc, command ftp, configuration file, ftp auto login, ftp client, ftp configuration, ftp macro definition, macros, ncftpd server
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