Commands by x3mboy (5)

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


    2
    ps aux | sort -rk 4,4 | head -n 10
    x3mboy · 2019-09-26 16:37:33 1
  • 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 0
  • 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 1
  • 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 0
  • 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 0

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Convert CSV to JSON
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This will backup the _contents_ of /media/SOURCE to /media/TARGET where TARGET is formatted with ntfs. The --modify-window lets rsync ignore the less accurate timestamps of NTFS.

Prepend a text to a file.
The original command is great, but I often want to prepend to every line.

print file without duplicated lines using awk
This create an array 'a' with wole lines. only one occurrence of each line - Not Get lines ++ !

Get the dir listing of an executable without knowing its location

Router discovery

Symlink all files from a base directory to a target directory
Simple and easy to remember, if it already exists then it just ignores it.

Easily decode unix-time (funtion)

Lists all listening ports together with the PID of the associated process
This command is more portable than it's cousin netstat. It works well on all the BSDs, GNU/Linux, AIX and Mac OS X. You won't find lsof by default on Solaris or HPUX by default, but packages exist around the web for installation, if needed, and the command works as shown. This is the most portable command I can find that lists listening ports and their associated pid.


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