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Top Forums Shell Programming and Scripting Batch changing file extensions Post 302190376 by cdines on Tuesday 29th of April 2008 12:17:14 PM
Old 04-29-2008
Data Batch changing file extensions

We are moving from an OpenVMS server to a Unix server and I have a problem with ftp'ing files.

When I ftp the VMS server from the Unix server, I need to "mget" some files, for example "mget test_file*.txt;". The semicolon is necessary because OpenVMS has multiple versions of the file (eg test_file.txt;1, test_file.txt;2, etc).

When I do this i end up with the file "test_file.txt;2". I then need to convert this to remove the semicolon.

I have tried various methods and have found one that works :

for file in *.txt*; do
noext="${file%.*}"
mv "$file" "${noext#*.}.txt"
done

However, I have problems with this :

1. it renames ALL .txt files even if they have no ";" and version number.
2. it will only do one file extension at a time.
3. it is inefficient

What I want is to say "for all files with a semicolon in the file extension, rename the file to everything to the left of the semicolon".

Better yet, "give me all files matching *.txt; from theVMS server, and create them on the Unix server without the ;"

Any suggestions would be appreciated.
 

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MOUNT_FTP(8)						    BSD System Manager's Manual 					      MOUNT_FTP(8)

NAME
mount_ftp -- mount a FTP filesystem SYNOPSIS
mount_ftp [-i] [-o options] ftp://host[:port][/path] node DESCRIPTION
The mount_ftp command mounts a FTP-enabled server directory at ftp://host[:port][/path] at the mount point indicated by node. If the -i option is not used, all the required information to establish a login to the remote server must be available in the ftp URL, including username & password if needed. The user ID for all files and folders is set to the user's real user ID. The group ID for all files and directories is set to unknown, and the permissions default to read and execute for user, group and other. The options are: -i Interactive mode, you are prompted for the username and password if you did not supply one in the url. -o Options passed to mount(2) are specified with the -o option followed by a comma separated string of options. See the mount(8) man page for possible options and their meanings. The rdonly option will be set even if it was not specified because mount_ftp does not allow files to be opened with write access on servers. ftp://host[:port][/path] The FTP-enabled server directory to mount as a volume. If port is not specified, then port 21 is used. If path is not specified, then the path "/" is used. node Path to mount point. EXAMPLES
The following example illustrates how to mount the FTP-enabled server directory ftp.apple.com/ at the mount point /Volumes/mntpnt/ mount_ftp ftp://ftp.apple.com/ /Volumes/mntpnt/ SEE ALSO
mount(2), unmount(2), mount(8) HISTORY
The mount_ftp command first appeared Mac OS X Version 10.2. RETURN VALUES
0 mount_ftp successfully mounted the server directory. [ENOENT] The server directory could not be mounted by mount_ftp because the node path is invalid. [ENODEV] The server directory could not be mounted by mount_ftp because it is not FTP-enabled or because it does not exist, or because node does not have proper access. [ECANCELED] The server directory could not be mounted by mount_ftp because the user did not provide proper authentication credentials. BUGS
mount_ftp only supports mounting read-only. Mac OS X June 6, 2003 Mac OS X
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