/Shell/Bash/Creating a 2d array in a script in linux shell

Creating a 2d array in a script in linux shell

#!/bin/bash
declare -A matrix
num_rows=4
num_columns=5

for ((i=1;i<=num_rows;i++)) do
    for ((j=1;j<=num_columns;j++)) do
        matrix[$i,$j]=$RANDOM
    done
done

f1="%$((${#num_rows}+1))s"
f2=" %9s"

printf "$f1" ''
for ((i=1;i<=num_rows;i++)) do
    printf "$f2" $i
done
echo

for ((j=1;j<=num_columns;j++)) do
    printf "$f1" $j
    for ((i=1;i<=num_rows;i++)) do
        printf "$f2" ${matrix[$i,$j]}
    done
    echo
done

Similar codes

3 votes148 views1 answer
Install docker centos 8
Shell/Bash
1 vote137 views1 answer
Method ReflectionParameter::getClass() is deprecated ubuntu
Shell/Bash
112 votes162 views6 answers
Install angular cli
Shell/Bash
8 votes106 views3 answers
Install yarn ubuntu 20.04
Shell/Bash
0 vote140 views1 answer
2FA git commands
Shell/Bash
2 votes275 views1 answer
Count the number of unique elements in a column bash
Shell/Bash
0 vote139 views2 answers
Symbolic link wsl mnt .ssh
Shell/Bash
15 votes144 views2 answers
Flutter install in window
Shell/Bash
9 votes156 views6 answers
Push github
Shell/Bash
2 votes133 views2 answers
One drive linux
Shell/Bash