6 ms·

Debian.

• cb321 3mo ago
  There is a python3 variant in this thread [1], but if that is not "standard enough" (as someone else may have mentioned bash itself is not POSIX), this awk would also work { Warning - this awk is 1000s of times faster than the bash. So, you really probably want that sleep { and sure 100s of times faster yet may be possible. } }: #!/usr/bin/awk -f BEGIN { # Split on spaces so multi-byte utf8 works nText = split("♥ P E A C E ♥ F O R ♥ A L L", tmp, " ") for (i = 0; i < nText; i++) text[i] = tmp[i + 1] color0 = 12; color1 = 208 # xterm-256 color cube range nColor = color1 - color0 # Could be a pretty gradient w = ENVIRON["COLUMNS"]; if (w == "") w = 80 h = ENVIRON["LINES"]; if (h == "") h = 24 freq = 0.2 for (t = 0; 1; t++) { x = int(w/2 + w/4*sin(t*freq) + 0.5) # x pos ~ sine color = color0 + int((nColor*t)/h)%nColor # cycle colors ch = text[t % nText] # cycle chars printf("%*s\033[38;5;%dm%s\033[m\n", x, "", color, ch) fflush() # system("sleep 0.1") # awk has no builtin sleep } } As to "bug reports", the T-shirt published script also fails with LC_ALL=C for me as mentioned else-thread. FWIW, I think ancient practice to reach for `bc` instead of `awk` or even the arithmetic built into shells often annoys. The only reason I keep `bc` installed at all is to compile Linux kernels. Someone had some patch set to Linux to eliminate this very dependency many years ago now. [1] https://news.ycombinator.com/item?id=48830669 https://news.ycombinator.com/item?id=48830669