Commands tagged uuid (11)

  • Show the UUID of a filesystem or partition

    Shows the UUID of the given partition (here /dev/sda7). Doesn't need to be root. Show Sample Output


    9
    blkid /dev/sda7
    lineak · 2010-09-05 12:20:45 6
  • detect partitions

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


    4
    lsblk -o NAME,TYPE,FSTYPE,LABEL,SIZE,MODEL,MOUNTPOINT
    BasketCase · 2012-09-12 15:30:25 4
  • detect partitions

    `blkid` is an interface to libuuid - it can read Device Mapper, EVMS, LVM, MD, and regular block devices. -c /dev/null - Do not use cached output from /etc/blkid.tab or /etc/blkid/blkid.tab (RHEL) -i - Display I/O Limits (aka I/O topology) information (not available in RHEL) -p - Low-level superblock probing mode (not available in RHEL) Show Sample Output


    2
    blkid -c /dev/null
    mhs · 2012-09-12 13:34:41 7
  • Show the UUID of a filesystem or partition

    Show the UUID-based alternate device names of ZEVO-related partitions on Darwin/OS X. Adapted from the lines by dbrady at http://zevo.getgreenbytes.com/forum/viewtopic.php?p=700#p700 and following the disk device naming scheme at http://zevo.getgreenbytes.com/wiki/pmwiki.php?n=Site.DiskDeviceNames Show Sample Output


    1
    ls /dev/disk* | xargs -n 1 -t sudo zdb -l | grep GPTE_
    grahamperrin · 2012-10-06 20:19:45 5
  • 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 21:19:47 356
  • Generate an over-the-top UUID

    first off, if you just want a random UUID, here's the actual command to use: uuidgen Your chances of finding a duplicate after running this nonstop for a year are about the same as being hit by a meteorite before finishing this sentence The reason for the command I have is that it's more provably unique than the one that uuidgen creates. uuidgen creates a random one by default, or an unencrypted one based on time and network address if you give it the -t option. Mine uses the mac address of the ethernet interface, the process id of the caller, and the system time down to nanosecond resolution, which is provably unique over all computers past, present, and future, subject to collisions in the cryptographic hash used, and the uniqueness of your mac address. Warning: feel free to experiment, but be warned that the stdin of the hash is binary data at that point, which may mess up your terminal if you don't pipe it into something. If it does mess up though, just type reset Show Sample Output


    0
    printf $(( echo "obase=16;$(echo $$$(date +%s%N))"|bc; ip link show|sed -n '/eth/ {N; p}'|grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'|head -c 17 )|tr -d [:space:][:punct:] |sed 's/[[:xdigit:]]\{2\}/\\x&/g')|sha1sum|head -c 32; echo
    camocrazed · 2010-07-14 14:04:53 10
  • Put uuid of disk into variable


    0
    TEST_UUID=$(blkid /dev/sda6 | sed -rn "s/^.*UUID=\"([a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12})\".*/\1/p")
    Scraelos · 2011-09-05 09:38:19 3
  • Remove dashes in UUID

    Remove the dashes from a UUID using bash search and replace. Show Sample Output


    0
    UUID="63b726a0-4c59-45e4-af65-bced5d268456"; echo ${UUID//-/}
    flatcap · 2011-11-22 22:49:30 103
  • generate a uuid

    piped this to pbcopy (OSX only) you got a uuid in the pasteboard Show Sample Output


    0
    echo "import uuid\nimport sys\nsys.stdout.write(str(uuid.uuid4()))" | python
    tippy · 2014-07-23 07:43:01 8
  • 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 8
  • Get Hardware UUID in Mac OS X


    0
    ioreg -d2 -c IOPlatformExpertDevice | awk -F\" '/IOPlatformUUID/{print $(NF-1)}'
    n8felton · 2018-08-18 21:18:20 325

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Query Wikipedia via console over DNS
Query Wikipedia by issuing a DNS query for a TXT record. The TXT record will also include a short URL to the complete corresponding Wikipedia entry.You can also write a little shell script like: $ $ cat wikisole.sh $ #!/bin/sh $ dig +short txt ${1}.wp.dg.cx and run it like $ ./wikisole.sh unix were your first option ($1) will be used as search term.

Equivalent to ifconfig -a in HPUX
Command is properly working on HP-UX 11.31

grab all commandlinefu shell functions into a single file, suitable for sourcing.
Each shell function has its own summary line, as a comment. If there are multiple shell functions with the same name, the function with the highest number of votes is put into the file. Note: added 'grep -v' to the end of the pipeline, to eliminate extraneous lines containing only '--'. Thanks to matthewbauer for pointing this out.

Rename many files in directories and subdirectories
This is probably overkill, but I have some issues when the directories have spaces in their names. The $ find . -type d -print0 | while read -d $'\0' dir; do xxx; done loops over all the subdirectories in this place, ignoring the white spaces (to some extend). $ cd "$dir"; echo " process $dir"; cd -; goes to the directory and back. It also prints some info to check the progress. $ find . -maxdepth 1 -name "*.ogg.mp3" -exec rename 's/.ogg.mp3/.mp3/' {} \; renames the file within the current directory. The whole should work with directories and file names that include white spaces.

Update your OpenDNS network ip
Intended for dynamic ip OpenDNS users, this command will update your OpenDNS network IP. For getting your IP, you can use one of the many one-liners here on commandlinefu. Example: I use this in a script which is run by kppp after it has successfully connected to my ISP: --- #!/bin/bash IP="`curl -s http://checkip.dyndns.org/ | grep -o '[[:digit:].]\+'`" PW="hex-obfuscated-pw-here" if [ "$IP" == "" ] ; then echo 'Not online.' ; exit 1 else wget -q --user=topsecret --password="`echo $PW | xxd -ps -r`" 'https://updates.opendns.com/nic/update?hostname=myhostname&myip='"$IP" -O - /etc/init.d/ntp-client restart & fi --- PS: DynDNS should use a similar method, if you know the URL, please post a comment. (Something with members.dyndns.org, if I recall correctly)

Multiple variable assignments from command output in BASH
This version uses read instead of eval.

scroll file one line at a time (w/only UNIX base utilities)
usage examples ls largedir |rd lynx -dump largewebsite.com |rd rd < largelogfile

Log the current memory statistics frequently to syslog
Uses logger in a while loop to log memory statistics frequently into the local syslog server.

Lookup your own IPv4 address

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