Commands tagged devices (5)

  • Get names of files in /dev, a USB device is attached to

    This command lists the names of your USB devices connected and what file in /dev they are using. It's pretty useful if you don't have an automount option in your desktop or you don't have any graphical enviroment. Show Sample Output


    2
    ls -la /dev/disk/by-id/usb-*
    casidiablo · 2009-11-25 16:02:06 0
  • Fast tape rewind

    Traditionally we rewind a tape using this syntaxis: mt -f /dev/rmt/0cbn rewind Redirecting the dispositive to nothing as shown above is faster. Less typing is always better.


    2
    < /dev/rmt/0cbn
    vlan7 · 2010-01-25 20:32:38 0
  • Recover deleted Binary files

    The above command assumes the lost data is on /dev/sda and you previously issued the following command to mount _another_ disk or partition (/dev/sdb1) on /recovery sudo mount /dev/sdb1 /recovery If you don't do this, the data could be overwrited! foremost is a very powerful carving tool. By default foremost recovers all known file types. If you want to reduce the amount of files that are recovered you can specify the file type you are looking for. Read the man page to know the available file types. i.e to recover JPEG pictures append to foremost the switch -tjpg


    2
    sudo foremost -i /dev/sda -o /recovery
    vlan7 · 2010-08-19 22:27:41 0
  • Remount an already-mounted filesystem without unmounting it

    Necessary for fsck for example. The remount functionality follows the standard way how the mount command works with options from fstab. It means the mount command doesn't read fstab (or mtab) only when a device and dir are fully specified. After this call all old mount options are replaced and arbitrary stuff from fstab is ignored, except the loop= option which is internally generated and maintained by the mount command. It does not change device or mount point.


    2
    mount -o remount,ro /dev/foo /
    vlan7 · 2010-10-30 03:51:53 1
  • Find usb device in realtime

    Using this command you can track a moment when usb device was attached.


    1
    watch -n 0,2 lsusb
    kot9pko · 2016-03-11 20:00:48 2

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Recursive find and replace file extension / suffix (mass rename files)
Find recursively all files in ~/Notes with the extension '.md' and pipe that via xargs to rename command, which will replace every '.md' to '.txt' in this example (existing files will not be overwritten).

Simulate typing

Convert entire audio library in parallel
Uses parallel processing Reiteration of my earlier command https://www.commandlinefu.com/commands/view/15246/convert-entire-music-library Usage lc Old_Directory New_DIrectory Old_Format New_Format lc ~/Music ~/Music_ogg mp3 ogg

To get how many users logged in and logged out and how many times ?

list block devices
Shows all block devices in a tree with descruptions of what they are.

dd with progress bar and statistics
This command utilizes 'pv' to show dd's progress. Notes on use with dd: -- dd block size (bs=...) is a widely debated command-line switch and should usually be between 1024 and 4096. You won't see much performance improvements beyond 4096, but regardless of the block size, dd will transfer every bit of data. -- pv's switch, '-s' should be as close to the size of the data source as possible. -- dd's out file, 'of=...' can be anything as the data within that file are the same regardless of the filename / extension.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Compare an archive with filesystem
and you quickly know the files you changed

Create a file of a given size in linux

Install pip with Proxy
Installs pip packages defining a proxy

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