How to put a command's result into a variable?

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Storing output of command in shell variable

How can I put the result of jps | awk '$2~/Bootstrap/{print $1}' into a variable so that I can use with other commands?

score 2 · Answer 1 · answered Dec 02 '11 at 21:52

2

Wrap it in $( ... )

xyzzy=$(jps | awk '$2~/Bootstrap/{print $1}')
echo $xyzzy

this creates a subshell the output of which is captured into xyzzy.

answered Dec 02 '11 at 21:52

1

"Nothing happens" – Zoredache Dec 03 '11 at 00:28
Note that any trailing newlines are deleted. .. This $(...) process is called Command Substitution and is one of the Shell Expansions: ✦ brace expansion ✦ tilde expansion ✦ parameter and variable expansion ✦ command substitution ✦ arithmetic expansion ✦ word splitting ✦ filename expansion – Peter.O Dec 03 '11 at 06:06

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