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View Code? Open in Web Editor NEWSweeping Lines Terminal Screensaver
License: MIT License
Sweeping Lines Terminal Screensaver
License: MIT License
Sweeping Lines Terminal Screensaver sweeplines.sh is just a simple Bash script I whipped up in about an hour, trying to imitate the screensaver that has colorful lines sweep and bounce within screen. It doesn't not have colors nor the sweeping line has a length longer than one character. For sake of simplicity, no random starting positions or direction, it always starts at upper-left corning and goes towards southeast. ONE-LINER The following 224 characters is a stripped version from the initial commit (e685f67) as a one-liner: W=($(tput cols) $(tput lines));P=(1 1);D=(1 1);L=\\/;clear;while sleep .05;do((i=(D[0]*D[1]+1)/2));echo -ne "\e[${P[1]};${P[0]}H${L:i:1}";for i in 0 1;do((P[i]+=D[i]));((P[i]<1||P[i]>W[i]))&&((D[i]*=-1,P[i]+=D[i]));done;done COPYRIGHT sweeplines.sh is licensed under the MIT License.
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