Commands tagged restore sorted by votes

Commands tagged restore (7)

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Mount a partition from within a complete disk dump

Suppose you made a backup of your hard disk with dd: dd if=/dev/sda of=/mnt/disk/backup.img This command enables you to mount a partition from inside this image, so you can access your files directly. Substitute PARTITION=1 with the number of the partition you want to mount (returned from sfdisk -d yourfile.img). Show Sample Output
This is sample output - yours may be different.
```
alanceil@kvirasim:22:20:1:~> /sbin/sfdisk -d disk.img
# partition table of disk.img
unit: sectors
disk.img1 : start=       63, size=   128457, Id=83
disk.img2 : start=        0, size=        0, Id= 0
disk.img3 : start=        0, size=        0, Id= 0
disk.img4 : start=        0, size=        0, Id= 0
root@kvirasim:22:20:0:~> INFILE=/home/alanceil/disk.img; MOUNTPT=/mnt/gen; PARTITION=1; mount "$INFILE" "$MOUNTPT" -o loop,offset=$[ `/sbin/sfdisk -d "$INFILE" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*start=[ ]*//' | sed 's/,.*//'` * 512 ]
root@kvirasim:22:22:0:~> mount | grep gen
/dev/loop0 on /mnt/gen type ext2 (rw,offset=32256)
```
8

INFILE=/path/to/your/backup.img; MOUNTPT=/mnt/foo; PARTITION=1; mount "$INFILE" "$MOUNTPT" -o loop,offset=$[ `/sbin/sfdisk -d "$INFILE" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*start=[ ]*//' | sed 's/,.*//'` * 512 ]

Alanceil · 2009-03-06 21:29:13 2
(Git) Revert files with changed mode, not content

I sometimes (due to mismanagement!) end up with files in a git repo which have had their modes changed, but not their content. This one-liner lets me revert the mode changes, while leaving changed-content files be, so I can commit just the actual changes made.
This is sample output - yours may be different.
5

git diff --numstat | awk '{if ($1 == "0" && $2 == "0") print $3}' | xargs git checkout HEAD

lingo · 2009-09-17 22:12:50 6
Mount a partition from within a complete disk dump

Instead of calculating the offset and providing an offset option to mount, let lomount do the job for you by just providing the partition number you would like to loop mount.
This is sample output - yours may be different.
4

lomount -diskimage /path/to/your/backup.img -partition 1 /mnt/foo

olorin · 2009-07-22 11:32:52 1
Restore deleted file from GIT repository

This command will automatically find the latest version of the file that was deleted and restore it to it's previous location. If, of course, your file was kept in a git repository... I found this command on http://stackoverflow.com/a/1113140
This is sample output - yours may be different.
2

git checkout $(git rev-list -n 1 HEAD -- "$file")^ -- "$file"

mitzip · 2012-08-23 02:33:22 0
Reads a CD/DVD and creates an dvdisaster iso image with the advanced RS02 method.
This is sample output - yours may be different.
1

dvdisaster -vr --defective-dump . --internal-rereads 5 --raw-mode 20 --read-attempts 1-23 --read-raw --speed-warning 12 --adaptive-read --auto-suffix --read-medium 2 && dvdisaster -vc -mRS02 --raw-mode 20 --read-raw --auto-suffix

brubaker · 2012-07-19 03:01:00 0
Generate a directory path based on the date and time

Great for backup / restore scripts. May want to remove the %M/%S to group backups by hour. If using a script, set a variable earlier with the date command, then reference that variable. Otherwise, time will keep on rolling ;-) declare -rx script_start_time="$(date '+./%Y/%m/%d/%H/%M/%S')" mkdir -p "$script_start_time" Show Sample Output
This is sample output - yours may be different.
```
forest@murgatroyd:~/2015/11/21/00/39/56$ pwd
/home/forest/2015/11/21/00/39/56
```
0

mkdir -p "$(date '+./%Y/%m/%d/%H/%M/%S')"

forestb · 2015-09-25 08:56:26 0
restore <mysqldump>.tar.gz on the fly

`tar xfzO` extracts to STDOUT which got redirected directly to mysql. Really helpful, when your hard drive can't fit two copies of non-compressed database :)
This is sample output - yours may be different.
-1

tar xfzO <backup_name>.tar.gz | mysql -u root <database_name>

alecnmk · 2011-02-10 22:18:42 0

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generate iso

Check if you work on a virtual/physical machine in Linux

Command used to know if we are working on a virtual or physical machine. This command will use the dmidecode utility to retrieve hardware information of your computer via the BIOS. Run this command as root or with sudo.

pdfcount: get number of pages in a PDF file

Save history without logout

You can use commands that executed on first console from new opened second console. Sometimes it be very useful :)

Optimal way of deleting huge numbers of files

This command works by rsyncing the target directory (containing the files you want to delete) with an empty directory. The '--delete' switch instructs rsync to remove files that are not present in the source directory. Since there are no files there, all the files will be deleted. I'm not clear on why it's faster than 'find -delete', but it is. Benchmarks here: https://web.archive.org/web/20130929001850/http://linuxnote.net/jianingy/en/linux/a-fast-way-to-remove-huge-number-of-files.html

An easter egg built into python to give you the Zen of Python

Scale,Rotate, brightness, contrast,...with Image Magick

$rotate: the rotate angle $width, $height: width and height to scale to $birghtness: change brighness

Print text string vertically, one character per line.

Define a function $ vert () { echo $1 | grep -o '.'; } Use it to print some column headers $ paste

Print one . instead of each line

If you're running a command with a lot of output, this serves as a simple progress indicator. This avoids the need to use `/dev/null` for silencing. It works for any command that outputs lines, updates live (`fflush` avoids buffering), and is simple to understand.

Substitute spaces in filename with underscore

Substitute spaces in filename with underscore, it work on the first space encountered.

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Commands tagged restore (7)

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