Multiplying strings in bash script

Question

I know that if I do print (\"f\" + 2 * \"o\") in python the output will be foo.

But how do I do the same thing in a bash script?

Answer 1

In bash you can use simple string indexing in a similar manner

#!/bin/bash
oos="oooooooooooooo"
n=2
printf "%c%s\n" 'f' ${oos:0:n}

output

foo

Another approach simply concatenates characters into a string

#!/bin/bash
n=2
chr=o
str=
for ((i = 0; i < n; i++)); do 
    str="$str$chr"
done
printf "f%s\n" "$str"

Output

foo

There are several more that can be used as well.