Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Challenges

"Hello, {name}!"

+3
−2

Background

While we do have a "Hello, World!" challenge, we still don't have one regarding input. So let's do one!

Challenge

Create a program that takes an input (not as a function argument) then outputs Hello, , the variable and ! altogether. Standard I/O only applies. Shortest submission per language wins!

Bonus: Use your username as the input.

History
Why does this post require moderator attention?
You might want to add some details to your flag.
Why should this post be closed?

2 comment threads

Output rules (2 comments)
A note about self answers (2 comments)

16 answers

+4
−0

jq, 14 bytes

"Hello, \(.)!"

Try it online!

jq has expression interpolation, pretty epic!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+3
−0

Bash, 20 18 bytes

Saved two bytes by removing the quotes; the code works well without them.

echo Hello, `cat`!

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+2
−0

Haskell, 43 35 bytes

main=interact$("Hello, "++).(++"!")

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+2
−0

C (gcc), 43 bytes

a[99];main(){printf("Hello, %s!",gets(a));}

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

2 comment threads

gets is removed from the C standard (2 comments)
a[] (2 comments)
+2
−0

Japt, 10 bytes

`HÁM, {U}!

Try it

The backtick decompresses a compressed string, the {} is Japt's string interpolation and U is the first input variable.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+1
−0

AWK, 21 bytes

{print"Hello, "$0"!"}

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+1
−0

shortC, 30 bytes

B){Cs[100];Qs);R"Hello, %s!",s

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+1
−0

Ruby, 24 21 18 bytes

p"Hello, #{gets}!"

Try it online!

Golfed down 3 bytes thanks to @snail_'s advice. Golfed down 3 bytes thanks to @south's advice.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

1 comment thread

21 bytes (2 comments)
+1
−0

Lua, 35 32 bytes

print("Hello, "..io.read().."!")

Try it online!

Golfed 3 bytes thanks to @Moshi's advice.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

1 comment thread

Inline (1 comment)
+1
−0

Sclipting, (UTF-16) 14 bytes

낆녬닆묬글⑴긐
History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+1
−0

Python 3, 27 bytes

print(f"Hello, {input()}!")

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+1
−0

JavaScript, 28 bytes

alert(`Hello, ${prompt()}!`)

Try it online!

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+0
−0

J, 29 char

('!',~'Hello, ',1!:1<1)1!:2<4

Sample run

    ('!',~'Hello, ',1!:1<1)1!:2<4
torres
Hello, torres!
History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

+0
−0

PHP, 55 27 21 bytes

Hello, <?=$argv[1]?>!

Try it online!

Golfed 28 bytes thanks to my Software CD post. Golfed 6 bytes thanks to @Shaggy's advice.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

1 comment thread

21 bytes (1 comment)
+0
−0

Java (JDK), 134 123 118 bytes

interface M{static void main(String[]a){System.out.print("Hello, "+new java.util.Scanner(System.in).nextLine()+"!");}}

Try it online!

Golfed 5 bytes thanks to @user's advice.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

1 comment thread

Did you even try golfing this? The two variable assignments look entirely useless to me. (3 comments)
+0
−0

Factor, 30 29 bytes

[ readln "Hello, %s!"printf ]

Try it online!

Uses io and formatting.

History
Why does this post require moderator attention?
You might want to add some details to your flag.

0 comment threads

Sign up to answer this question »