/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

0 vote198 views1 answer
Awk use string as field separator
Shell/Bash
5 votes189 views1 answer
Model class django.contrib.sites.models.Site doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS
Shell/Bash
0 vote177 views1 answer
Linux instal netmanager
Shell/Bash
1 vote229 views1 answer
Streamlink save to mp4
Shell/Bash
0 vote219 views1 answer
How to install lazygit on ubuntu
Shell/Bash
0 vote166 views1 answer
Centos 7 ius-release.rpm
Shell/Bash
1 vote243 views1 answer
How to uninstall thunderbird ubuntu terminal
Shell/Bash
1 vote216 views2 answers
Npm install behind proxy
Shell/Bash
1 vote222 views1 answer
Bash script template
Shell/Bash
1 vote196 views1 answer
Create a vpn server linux
Shell/Bash