Commands by x3mboy (8)

  • Simple tar

    Simple commant to tar a path


    -2
    tar -cvzf file.tar.gz path
    x3mboy · 2022-09-17 16:40:09 850
  • Sort disk usage from directories

    Sort disk usage from directories in the current directory Show Sample Output


    2
    du --max-depth=1 -h . | sort -h
    x3mboy · 2022-08-23 14:58:57 480
  • Add a DNS server on the fly

    Since systemd-resolved was implemented, add a DNS server have become weirder and harder than before. With this command, you can add a DNS server on-the-fly tied to an specific interface


    5
    sudo systemd-resolve --interface <NombreInterfaz> --set-dns <IPDNS> --set-domain mydomain.com
    x3mboy · 2021-09-21 14:43:48 228
  • Top 10 Memory Processes

    It displays the top 10 processes sorted by memory usage Show Sample Output


    3
    ps aux | sort -rk 4,4 | head -n 10
    x3mboy · 2019-09-26 16:37:33 91
  • Python version to a file

    This command sent the Python version to a file. This is intended to be used in scripts. For some reason, simple redirections didn't work with "python -V" Show Sample Output


    0
    echo "$(python -V 2>&1)" > file
    x3mboy · 2018-11-06 20:52:49 442
  • Sort processes by CPU Usage

    Short list about top 10 processes, sorted by CPU usage Show Sample Output


    3
    ps aux | sort -rk 3,3 | head -n 10
    x3mboy · 2018-10-29 20:00:36 570
  • Show a clock in the upper right corner

    This will use tput to place the command (date %T in this case) in the upper right corner of the terminal


    0
    while sleep 1;do tput sc;tput cup 0 $(($(tput cols)-11));echo -e "\e[31m`date +%T`\e[39m";tput rc;done &
    x3mboy · 2017-11-16 18:07:39 19
  • Find logs modified in the last 15 minutes

    This is a regular find with the -wholename parameter to let it know what name pattern he need to look and then the -mmin -15 to know the last 15 minutes. Show Sample Output


    0
    find /var/log -wholename "*.log" -mmin -15
    x3mboy · 2017-08-03 15:47:43 15

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Run a command only when load average is below a certain threshold
Good for one off jobs that you want to run at a quiet time. The default threshold is a load average of 0.8 but this can be set using atrun.

Convert spaces in file names to underscores

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"

list folders containing less than 2 MB of data
This command will search all subfolders of the current directory and list the names of the folders which contain less than 2 MB of data. I use it to clean up my mp3 archive and to delete the found folders pipe the output to a textfile & run: $ while read -r line; do rm -Rv "$line"; done < textfile

Burn CD/DVD from an iso, eject disc when finished.
cdrecord -scanbus will tell you the (x,y,z) value of your cdr (for example, mine is 3,0,0)

Run a command for blocks of output of another command
The given example collects output of the tail command: Whenever a line is emitted, further lines are collected, until no more output comes for one second. This group of lines is then sent as notification to the user. You can test the example with $ logger "First group"; sleep 1; logger "Second"; logger "group"

batch convert Nikon RAW (nef) images to JPG
converts RAW files from a Nikon DSLR to jpg for easy viewing etc. requires ufraw package

a function to create a box of '=' characters around a given string.
First argument: string to put a box around. Second argument: character to use for box (default is '=') Same as command #4948, but shorter, and without the utility function.

Backup all mysql databases to individual files on a remote server
It grabs all the database names granted for the $MYSQLUSER and gzip them to a remote host via SSH.

use the previous commands params in the current command
Here the !!:1 will take the first parameter from the previous command. This can be used in conjunction with other history commands like ! and so on.

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