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Full Discussion: Retaining latest file
Top Forums Shell Programming and Scripting Retaining latest file Post 302901851 by Don Cragun on Friday 16th of May 2014 04:36:21 AM
Old 05-16-2014
You could try something like:
Code:
#!/bin/ksh
IAm=${0##*/}
if [ $# -ne 1 ]
then    echo "Usage: $IAm NameBase" >&2
        exit 1
fi      
set -- "$1"_*
name="$1"
shift
if [ "$name" != "${name%_[*]}" ]
then    printf "%s: No files found with names starting with \"%s\"\n" \
                "$IAm" "${name%[*]}" >&2
        exit 2  
fi      
if [ $# -eq 0 ]
then    printf "%s: Only one file found: \"%s\"\n" "$IAm" "$name" >&2
        exit 3
fi      
while [ $# -ge 1 ]
do      if [ "$name" -nt "$1" ]
        then    printf "Removing \"%s\"\n" "$1"
                echo rm "$1"
        else    printf "Removing \"%s\"\n" "$name"
                echo rm "$name"
                name="$1"
        fi      
        shift 1
done    
printf "Keeping \"%s\"\n" "$name"

If you try this and it looks like it will do what you want, remove the text in red so it will actually remove files instead of just telling you which files it thinks it should remove.

This assumes that if there are two or more matching files, it should remove all but the latest file.
 

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bup-restore(1)						      General Commands Manual						    bup-restore(1)

NAME
bup-restore - extract files from a backup set SYNOPSIS
bup restore [--outdir=outdir] [-v] [-q] DESCRIPTION
bup restore extracts files from a backup set (created with bup-save(1)) to the local filesystem. The specified paths are of the form /branch/revision/path/to/file. The components of the path are as follows: branch the name of the backup set to restore from; this corresponds to the --name (-n) option to bup save. revision the revision of the backup set to restore. The revision latest is always the most recent backup on the given branch. You can dis- cover other revisions using bup ls /branch. /path/to/file the original absolute filesystem path to the file you want to restore. For example, /etc/passwd. Note: if the /path/to/file is a directory, bup restore will restore that directory as well as recursively restoring all its contents. If /path/to/file is a directory ending in a slash (ie. /path/to/dir/), bup restore will restore the children of that directory directly to the current directory (or the --outdir). If the directory does not end in a slash, the children will be restored to a subdirectory of the current directory. See the EXAMPLES section to see how this works. OPTIONS
-C, --outdir=outdir create and change to directory outdir before extracting the files. -v, --verbose increase log output. Given once, prints every directory as it is restored; given twice, prints every file and directory. -q, --quiet don't show the progress meter. Normally, is stderr is a tty, a progress display is printed that shows the total number of files restored. EXAMPLE
Create a simple test backup set: $ bup index -u /etc $ bup save -n mybackup /etc/passwd /etc/profile Restore just one file: $ bup restore /mybackup/latest/etc/passwd Restoring: 1, done. $ ls -l passwd -rw-r--r-- 1 apenwarr apenwarr 1478 2010-09-08 03:06 passwd Restore the whole directory (no trailing slash): $ bup restore -C test1 /mybackup/latest/etc Restoring: 3, done. $ find test1 test1 test1/etc test1/etc/passwd test1/etc/profile Restore the whole directory (trailing slash): $ bup restore -C test2 /mybackup/latest/etc/ Restoring: 2, done. $ find test2 test2 test2/passwd test2/profile SEE ALSO
bup-save(1), bup-ftp(1), bup-fuse(1), bup-web(1) BUP
Part of the bup(1) suite. AUTHORS
Avery Pennarun <apenwarr@gmail.com>. Bup unknown- bup-restore(1)
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