21
3
How can I concatenate strings and variables in a shell script?
stringOne = "foo"
stringTwo = "anythingButBar"
stringThree = "? and ?"
I want to output "foo and anythingButBar"
Moshe
Posted 2011-01-27T22:19:04.333
Reputation: 5 474
How do I concatenate strings in a bash script?
Answers
29
Nothing special, you just need to add them to your declaration.
for example:
[Zypher@host01 monitor]$ stringOne="foo"
[Zypher@host01 monitor]$ stringTwo="anythingButBar"
[Zypher@host01 monitor]$ stringThree=$stringOne$stringTwo
[Zypher@host01 monitor]$ echo $stringThree
fooanythingButBar
if you want the literal word 'and' between them:
[Zypher@host01 monitor]$ stringOne="foo"
[Zypher@host01 monitor]$ stringTwo="anythingButBar"
[Zypher@host01 monitor]$ stringThree="$stringOne and $stringTwo"
[Zypher@host01 monitor]$ echo $stringThree
foo and anythingButBar
Zypher
Posted 2011-01-27T22:19:04.333
Reputation: 2 077
5
If instead you had:
stringOne="foo"
stringTwo="anythingButBar"
stringThree="%s and %s"
you could do:
$ printf "$stringThree\n" "$stringOne" "$stringTwo"
foo and anythingButBar
Mikel
Posted 2011-01-27T22:19:04.333
Reputation: 7 890
You can also do
stringThree=$stringOne" and "$stringTwo. – Armfoot – 2015-12-04T11:38:41.1734If I might make a suggestion, your prompt is noisy and obscures your answer (and a space after the dollar sign would help readability). Something like
$ stringOne="foo", for example. Also, the prompt shouldn't appear on an output line (the lines after the echos). Otherwise +1. – Paused until further notice. – 2011-01-27T22:31:55.31310
echo ${stringOne}and${stringTwo}if you don't want spaces – max taldykin – 2011-01-28T09:41:16.927