How do I print odd numbers in bash?
Bash While Loop: An Easy Way to Print Odd Numbers from 1 to N
- INDEX=0 while [ INDEX < N ] do. if [ $INDEX is Odd ] then.
- #!/bin/bashINDEX=0while [ $INDEX -lt 20 ] do. REMAINDER=$(( $INDEX % 2 )) if [ $REMAINDER -ne 0 ] then.
- #!/bin/bashN=$1. INDEX=0while [ $INDEX -lt $N ] do.
How do I print a variable in a Bash script?
To Print the value of above variables, use echo command as shown below :
- # echo $HOME. # echo $USERNAME.
- $ cat myscript.
- #!/bin/bash. # display user information from the system.
- $ echo “The cost of the item is $15”
- $ echo “The cost of the item is \$15”
- var1=10.
- $ cat test3.
- Running the script produces the following output:
How to increment a variable in a shell script?
Now let’s learn about adding values and incrementing variables in shell scripts when working with loop. In this section we will execute a for loop which will iterate based on variable value. The value of this variable will be incremented up to a defined threshold.
How to print a number in a while loop?
Start a while loop that is executed if the value of INDEX is less than 20. At every iteration of the loop calculate the REMAINDER for the division of the INDEX by 2. Check if the REMAINDER is not zero…in that case print INDEX because it’s an odd number Increment the value of INDEX by 1 before executing the next iteration of the while loop
How to increment a line number in Bash?
So we have used the code to increment our line number as used with for loop earlier LINE=$ ( (LINE+1)). This is the only part which does the magic. You always have to remember two things when using such variable for incrementing
How to print numbers from 1 to N in Bash?
Let’s create a loop that goes through N numbers and prints only the odd ones. You will see how our script looks like if we hardcode the value of N in it, and then you will learn how to pass the value of N to the script as an argument via the Linux command line. This applies to any Bash shell running on Unix-like systems (including MacOS).