Matrix Style

echo -e "\e[31m"; while $t; do for i in `seq 1 30`;do r="$[($RANDOM % 2)]";h="$[($RANDOM % 4)]";if [ $h -eq 1 ]; then v="\e[1m $r";else v="\e[2m $r";fi;v2="$v2 $v";done;echo -e $v2;v2="";done;

It's the same command as submitted, but first with a command to make all characters green. It's the only way it looked "matrix-like" on my gnome-terminal.

By: Patola

2009-07-10 04:20:43

echo color

10 Alternatives + Submit Alt

Matrix Style
This is sample output - yours may be different.
68

tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]"

allinurl · 2009-06-30 17:23:49 27
Matrix Style

I like the fact the Patola's version uses only ones and zeros, but I also like the sparse output of the other versions. This one combines both of those features and eliminates some unnecessary cruft. You can vary the sparseness by changing "$(($RANDOM % 5))" to another number. The number in this term "$(($RANDOM % 4))" controls how frequently the numbers are output bold.
This is sample output - yours may be different.
21

echo -e "\e[32m"; while :; do for i in {1..16}; do r="$(($RANDOM % 2))"; if [[ $(($RANDOM % 5)) == 1 ]]; then if [[ $(($RANDOM % 4)) == 1 ]]; then v+="\e[1m $r "; else v+="\e[2m $r "; fi; else v+=" "; fi; done; echo -e "$v"; v=""; done

dennisw · 2009-09-27 15:30:38 17
Another Matrix Style Implementation
This is sample output - yours may be different.
8

COL=$(( $(tput cols) / 2 )); clear; tput setaf 2; while :; do tput cup $((RANDOM%COL)) $((RANDOM%COL)); printf "%$((RANDOM%COL))s" $((RANDOM%2)); done

sputnick · 2009-12-15 02:48:28 12
Matrix Style

Solves "tr" issues with non C-locales under BSD-like systems (like OS X)
This is sample output - yours may be different.
7

LC_ALL=C tr -c "[:digit:]" " " < /dev/urandom | dd cbs=$COLUMNS conv=unblock | GREP_COLOR="1;32" grep --color "[^ ]"

zzambia · 2009-07-02 07:10:33 11
Another Matrix Style Implementation

A bit different from some of the other submissions. Has bold and uses all c printable characters. Change the bs=value to speed up and increase the sizes of the bold and non-bold strings.
This is sample output - yours may be different.
5

echo -ne "\e[32m" ; while true ; do echo -ne "\e[$(($RANDOM % 2 + 1))m" ; tr -c "[:print:]" " " < /dev/urandom | dd count=1 bs=50 2> /dev/null ; done

psykotron · 2009-12-19 19:05:04 5

What Others Think

If we change the initial '''echo -e "\e[31m"; ''' by '''echo -e "\e[32m"; ''', the color shift from red to green. [more "matrix-realistic"]. Also, we can add a "sleep 0.1" command to slow down the "code". Nice script, thx.

nobodyelse · 794 weeks and 2 days ago

Cool. If you do `seq 1 $COLUMNS` instead of `seq 1 30` , terminal will be filled no matter the number of columns in it.

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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