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Top Forums UNIX for Advanced & Expert Users Auto copy for files from folder to folder upon instant writing Post 302227595 by Mike Brown on Thursday 21st of August 2008 02:44:30 PM
Old 08-21-2008
I'm trying to do something similar and have been reading posts and experimenting all day. On my team, we sometimes modify a file with vi but forget to stop and make a backup copy of the original first. You can imagine that "rollback" is almost impossible with this little "problem."

I'd like to do an automatic copy, date/time stamp automatically appended to the file name, and alias vi to call this automatic copy script as follows:

vi <file>
file is automatically copied to <file>.00814201440
make your changes
quit vi

If you worked out this problem or (anyone) came up with an answer or can, please let me know, thanks!
 

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BACKUP(8)						      System Manager's Manual							 BACKUP(8)

NAME
backup - backup files SYNOPSIS
backup [-djmnorstvz] dir1 dir2 OPTIONS
-d At top level, only directories are backed up -j Do not copy junk: *.Z, *.bak, a.out, core, etc -m If device full, prompt for new diskette -n Do not backup top-level directories -o Do not copy *.o files -r Restore files -s Do not copy *.s files -t Preserve creation times -v Verbose; list files being backed up -z Compress the files on the backup medium EXAMPLES
backup -mz . /f0 # Backup current directory compressed backup /bin /usr/bin # Backup bin from RAM disk to hard disk DESCRIPTION
Backup (recursively) backs up the contents of a given directory and its subdirectories to another part of the file system. It has two typ- ical uses. First, some portion of the file system can be backed up onto 1 or more diskettes. When a diskette fills up, the user is prompted for a new one. The backups are in the form of mountable file systems. Second, a directory on RAM disk can be backed up onto hard disk. If the target directory is empty, the entire source directory is copied there, optionally compressed to save space. If the target directory is an old backup, only those files in the target directory that are older than similar names in the source directory are replaced. Backup uses times for this purpose, like make. Calling Backup as Restore is equivalent to using the -r option; this replaces newer files in the target directory with older files from the source directory, uncompressing them if necessary. The target directory con- tents are thus returned to some previous state. SEE ALSO
tar(1). BACKUP(8)
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