Shell Script to Print all Prime Numbers Between n and m

A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing text. A script that sets up the environment, runs the program, and does any necessary cleanup, logging, etc. is called a wrapper.

In this post, we will write a shell script to print all Prime Numbers Between n and m.

INPUT:
line 1: n and m

OUTPUT:
prime numbers

The following is the shell script to print all Prime Numbers Between n and m:

echo enter m and n
read m n

for a in $(seq $m $n)
do
    k=0
    for i in $(seq 2 $(expr $a - 1))
    do 
        if [ $(expr $a % $i) -eq 0 ]
        then
            k=1
            break
        fi
    done
    if [ $k -eq 0 ]
    then
    echo $a
    fi
done

OUTPUT:

$ enter m and n
$ 3 10
$ 3
$ 5
$ 7

Let us know in the comments if you are having any questions regarding this shell script.

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