Not able to run the code

Question

0.00/5 (No votes)

See more:

I'am trying to create a function that takes name as argument(<username>_<num> and gives R +1 as result.( in linux)
e.g newfunc apple_1
apple_2

What I have tried:

function newfunc {
	INPUT=$1;
	NUMBER=$(echo INPUT | tr -dc '0-9');
	TEXT=$(echo INPUT | tr -dc '[:alpha:]');
	NUMBER=$((NUMBER+1));
	echo"${USERNAME}_${NUMBER}"
}
newfunc

Posted 4-Mar-17 10:46am

Member 13038268

Updated 4-Mar-17 18:04pm

Add a Solution

Comments

[no name] 4-Mar-17 17:36pm

You might have better luck tagging your question with the actual programming language this is. Linux is an operating system not a programming language.

Patrice T 4-Mar-17 18:20pm

What is the language ?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Peter Leow · Answer 1 · 2017-03-04T18:04:00

This is a Unix/linux shell script, there are a couple of syntax and logic errors, check this out:

newfunc() {
   	INPUT=$1
   	echo $INPUT
	NUMBER=$(echo "${INPUT:$((${#INPUT}-1)):1}")
	echo ${NUMBER}
	TEXT=$(echo "${INPUT:$i:-1}")
	echo $TEXT
	NUMBER=$((NUMBER+1))
	echo "$TEXT${NUMBER}"
}

newfunc "apple_1"

The ouputs:

apple_1
1
apple_
apple_2

Learn Unix Shell Functions[^]