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Comment by wutwutwat | Hacker News Reader

alias snow='for((I=0;J=--I;))do clear;for((D=LINES;S=++J*3%COLUMNS,--D;))do printf %*s.\\n $S;done;sleep .1;done'

zsh: parse error near `)'

Need a space after each `for` keyword.

A while back there was a whole post about making it snow in your terminal [1]. I think my favorite was [2]:

    while sleep 0.1; do printf "%-$(( ( RANDOM % `tput cols` ) - 1))s\e[0;$(( 30 + ($RANDOM % 8) ))m*\n" ; done

alias snow='for ((I=0;J=--I;)); do clear; for ((D=LINES;S=++J*3%COLUMNS,--D;)); do printf %*s.\\n $S;done;sleep .1;done'