/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 vote188 views1 answer
Mover linux ssh
Shell/Bash
32 votes168 views6 answers
Sed replace with variable
Shell/Bash
0 vote166 views1 answer
Linux traverse all subdirectories and do action
Shell/Bash
-1 vote142 views1 answer
! [rejected] main -> main (fetch first) error: failed to push some refs to 'https://github.com/nareshswami199/blogspringboot.git'
Shell/Bash
2 votes182 views1 answer
Vim rename file
Shell/Bash
0 vote163 views1 answer
Git push all tags
Shell/Bash
1 vote168 views1 answer
Grep find and show lines after
Shell/Bash
0 vote166 views1 answer
Bash get files older than
Shell/Bash
0 vote180 views1 answer
Shell script runner software for linux
Shell/Bash
2 votes158 views3 answers
How to rename many files at once linux
Shell/Bash