skip to content W3C SVG

16 Juli

Jul 16, 2019
Apr 22, 2020

setting limits to resources

free
to check memory resources consumption
crontab -l
run periodic jobs on system

Limit memory usage for a single Linux process

How to update terminal text without repainting? How to overwrite a line

  • repaint terminal
  • commandline
    • get/set current commandline buffer
    • If commandline is called during a call to complete a given string using complete -C STRING, commandline will consider the specified string to be the current contents of the command line.
  • use \r instead of \n
  • ncurses

TUI APplication

  • dialog
    • –msgbox
    • –yesno
    • –infobox
    • –textbox
    • –inputbox
    • –menu
    • –guage

  • zenity

  • Terminals offer control sequences to control color, font, cursor position and more

  • Terminal interprets escape sequences

    echo -n first
sleep 1
echo -ne "\rsecond"
echo

for f in (seq 0 100)
printf '%s\r' (string repeat -n $f -- '#')
sleep 0.01s
end

for i in (seq 9)
echo -n $i\b
sleep 0.5s
end

for i in (seq 0 10 100)
echo $i | dialog --guage "Working..." 10 35
sleep 0.5s
end

ls (zenity --file-selection --directory)

tracking a process in linux?

top and htop commands

htop
interactive process manager
entire logic for gathering process data is based on the /proc filesystem
UI uses ncurses only

other solutions

Questions

  1. write a vue.js based terminal app?1

Footnotes

[^2]:

  1. Create a Terminal Program with Vue.js and blessed-vue [return]