Concatenate in bash the output of two commands without newline character

user_1325279 0
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What I need:

Suppose I have two commands, A and B, each of which returns a single-line string (i.e., a string with no newline character, except possibly 1 at the very end). I need a command (or sequence of piped commands) C that concatenates the output of commands A and B on the same line and inserts 1 space character between them.

Example of how it should work:

For example, suppose the output of command A is the string between the quotation marks here:

"The quick"

And suppose the output of command B is the string between the quotation marks here:

"brown fox"

Then I want the output of command(s) C to be the string between the quotation marks here:

"The quick brown fox"

My best attempted solution:

In trying to figure out C by myself, it seemed that the follow sequence of piped commands should work:

{ echo "The quick" ; echo "brown fox" ; } | xargs -I{} echo {} | sed 's/\n//'

Unfortunately, the output of this command is

The quick
brown fox
concatenation sed pipe bash regex
5 Answers

I'll try to explain the solution with another simple example

We've to concatenate the output of the following command:
"pwd" and "ls"

echo "$(pwd)$(ls)";

Output: 2 concatenated strings

user_52034510 
$ { echo -n "The quick" ; echo -n " " ; echo "brown fox" ; }
The quick brown fox
user_77751120
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