Commands tagged hardware (17)

  • Show all detected mountable Drives/Partitions/BlockDevices

    Yields entries in the form of "/dev/hda1" etc. Use this if you are on a new system and don't know how the storage hardware (ide, sata, scsi, usb - with ever changing descriptors) is connected and which partitions are available. Far better than using "fdisk -l" on guessed device descriptors. Show Sample Output


    13
    hwinfo --block --short
    Schneckentreiber · 2009-04-24 11:13:31 4
  • Get information on your graphics card on linux (such as graphics memory size)

    Loop is needed if you have more then one card. Show Sample Output


    4
    for I in `/sbin/lspci |awk '/VGA/{print $1}'`;do /sbin/lspci -v -s $I;done
    houghi · 2010-10-26 19:02:26 0
  • 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
  • Check if *hardware* is 32bit or 64bit

    This command tell you if your hardware is 32 or 64 bits even if you install a 32bits OS on a 64 bits hardware. If your distro don't support the -q switch, try doing : grep &>/dev/null '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits


    2
    grep -q '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits
    sputnick · 2013-02-09 13:01:36 0
  • Get information on your graphics card on linux (such as graphics memory size)

    probably only works if you have one graphics card. used this: http://www.cyberciti.biz/faq/howto-find-linux-vga-video-card-ram/ as reference can be expanded, for example: lspci -v -s `lspci | awk '/VGA/{print $1}'` | sed -n '/Memory.*, prefetchable/s/.*\[size=\([^]]\+\)\]/\1/p' will just get the amount of prefetchable memory compare to: lshw -C display which does not give the size (it does give byte ranges and you could calculate the size from that, but that's a pain) Also uses a command which is not standard on linux; wheras lspci is a core utility provided by most systems Show Sample Output


    1
    lspci -v -s `lspci | awk '/VGA/{print $1}'`
    infinull · 2010-10-26 17:45:14 1
  • Find installed network devices

    Find installed network devices. Show Sample Output


    1
    sudo lshw -C network
    cantormath · 2012-06-07 10:32:49 0
  • Adjust display hardware brightness [dbus way]


    1
    dbus-send --session --print-reply --dest="org.gnome.SettingsDaemon" /org/gnome/SettingsDaemon/Power org.gnome.SettingsDaemon.Power.Screen.SetPercentage uint32:30
    totti · 2013-02-04 11:21:07 0
  • Check if *hardware* is 32bit or 64bit

    CPU flags: rm --> 16-bit processor (real mode) tm --> 32-bit processor (? mode) lm --> 64-bit processor (long mode)


    1
    cat /proc/cpuinfo | grep " lm " > /dev/null && echo 64 bits || echo 32 bits
    agd · 2013-02-11 22:54:26 0
  • Get Hardware UUID in Mac OS X

    Formats the output from `ioreg` into XML, then parses the XML with `xmllint`'s xpath feature. Show Sample Output


    1
    ioreg -ad2 -c IOPlatformExpertDevice | xmllint --xpath '//key[.="IOPlatformUUID"]/following-sibling::*[1]/text()' -
    n8felton · 2018-08-18 21:19:47 1
  • Check if *hardware* is 32bit or 64bit

    Avoids cat abuse ;)


    0
    grep " lm " /proc/cpuinfo > /dev/null && echo "64-bit" || echo "32-bit"
    MrCode · 2013-02-19 21:40:44 0
  • Bluetooth hardware info

    Info about Bluetooth devices. Show Sample Output


    0
    hciconfig;hciconfig -a hci0;lsmod |grep bt;dmesg | grep tooth
    FadeMind · 2013-08-21 12:29:23 1
  • Get Hardware UUID in Mac OS X

    Gets the Hardware UUID of the current machine using system_profiler. Show Sample Output


    0
    system_profiler SPHardwareDataType | awk '/UUID/ { print $3; }'
    thealanberman · 2014-07-25 06:54:40 0
  • Get Hardware UUID in Mac OS X


    0
    ioreg -d2 -c IOPlatformExpertDevice | awk -F\" '/IOPlatformUUID/{print $(NF-1)}'
    n8felton · 2018-08-18 21:18:20 0
  • Show display type


    -1
    ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6
    unixmonkey4003 · 2009-05-29 18:52:12 0
  • Check if *hardware* is 32bit or 64bit


    -1
    uname -m
    wee0x1b · 2013-02-15 17:23:44 0
  • What Type of Computer Do You Have?

    Prints the type of computer you have. I think this should be used more in distros and other applications because it is so easy to get. This can also be asked by tutorials as an easy way to get your base hardware. Some alternatives: sudo dmidecode -s system-product-name and sudo smbios-sys-info-lite | sed -n 's/^Product Name: *\(.*\)/\1/p' Show Sample Output


    -2
    cat /sys/devices/virtual/dmi/id/board_name
    matthewbauer · 2010-04-22 03:21:40 4
  • Check if *hardware* is 32bit or 64bit

    CPU flags: rm --> 16-bit processor (real mode) tm --> 32-bit processor (? mode) lm --> 64-bit processor (long mode)


    -4
    if [[ lm = $(cat /proc/cpuinfo | grep " lm ") ]] ; then echo "64 bits" ; else echo "32 bits" ; fi
    agd · 2013-02-11 22:40:46 0

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Change a specific value in a path
Awk replaces the value of a specific field while retaining the field separator "/" .

Uniquely (sort of) color text so you can see changes
Colorify colors input by converting the text to a number and then performing modulo 7 on it. This resulting number is used as the color escape code. This can be used to color the results of commands with complex outputs (like "482279054165371") so if any of the digits change, there's a good chance the color will change too. I say good chance because there's only 7 unique colors here, so assuming you were watching random numbers, there would be a 6/7 chance that the color would change when the number changed. This should really only be used to help quickly identify when things change, but should not be the only thing relied upon to positively assert that an output has not changed.

skip broken piece of a loop but not exit the loop entirely
useful for loops like for i in $(cat list_of_servers); do ssh -q $i hostname; done if there is an unreachable server, you can just press ctrl + \ to skip that server and continue on with the loop

Stay in the loop…

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