09-24-2009
using cut command right to left
Hi guys
I have variable that contains a full directory path.
var=/tmp/a/b/c/d
I want to be able to extract different directories in the path right to left while using / as the delimiter.
so for e.g. if in the above example if I want c then I want it to be in the middle of 1st and second / rather than 4th and 5th.
and if I want to extract do then it would be right of the first / .
If possible please post the full command rather than just suggesting a switch to use.
many thanks
ali
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LEARN ABOUT DEBIAN
bup-meta
bup-meta(1) General Commands Manual bup-meta(1)
NAME
bup-meta - create or extract a metadata archive
SYNOPSIS
bup meta --create
[-R] [-v] [-q] [--no-symlinks] [--no-paths] [-f file] <paths...>
bup meta --list
[-v] [-q] [-f file]
bup meta --extract
[-v] [-q] [--numeric-ids] [--no-symlinks] [-f file]
bup meta --start-extract
[-v] [-q] [--numeric-ids] [--no-symlinks] [-f file]
bup meta --finish-extract
[-v] [-q] [--numeric-ids] [-f file]
DESCRIPTION
bup meta either creates or extracts a metadata archive. A metadata archive contains the metadata information (timestamps, ownership,
access permissions, etc.)
for a set of filesystem paths.
OPTIONS
-c, --create
Create a metadata archive for the specified paths. Write the archive to standard output unless --file is specified.
-t, --list
Display information about the metadata in an archive. Read the archive from standard output unless --file is specified.
-x, --extract
Extract a metadata archive. Conceptually, perform --start-extract followed by --finish-extract. Read the archive from standard
input unless --file is specified.
--start-extract
Build a filesystem tree matching the paths stored in a metadata archive. By itself, this command does not produce a full restora-
tion of the metadata. For a full restoration, this command must be followed by a call to --finish-extract. Once this command has
finished, all of the normal files described by the metadata will exist and be empty. Restoring the data in those files, and then
calling --finish-extract should restore the original tree. The archive will be read from standard input unless --file is specified.
--finish-extract
Finish applying the metadata stored in an archive to the filesystem. Normally, this command should follow a call to --start-
extract. The archive will be read from standard input unless --file is specified.
-f, --file=filename
Read the metadata archive from filename or write it to filename as appropriate. If filename is "-", then read from standard input
or write to standard output.
-R, --recurse
Recursively descend into subdirectories during --create.
--numeric-ids
Apply numeric user and group IDs (rather than text IDs) during --extract or --finish-extract.
--symlinks
Record symbolic link targets when creating an archive, or restore symbolic links when extracting an archive (during --extract or
--start-extract). This option is enabled by default. Specify --no-symlinks to disable it.
--paths
Record pathnames when creating an archive. This option is enabled by default. Specify --no-paths to disable it.
-v, --verbose
Be more verbose (can be used more than once).
-q, --quiet
Be quiet.
EXAMPLES
# Create a metadata archive for /etc.
$ bup meta -cRf etc.meta /etc
bup: removing leading "/" from "/etc"
# Extract the etc.meta archive (files will be empty).
$ mkdir tmp && cd tmp
$ bup meta -xf ../etc.meta
$ ls
etc
# Restore /etc completely.
$ mkdir tmp && cd tmp
$ bup meta --start-extract -f ../etc.meta
...fill in all regular file contents using some other tool...
$ bup meta --finish-extract -f ../etc.meta
BUGS
Hard links are not handled yet.
BUP
Part of the bup(1) suite.
AUTHORS
Rob Browning <rlb@defaultvalue.org>.
Bup unknown- bup-meta(1)