Maybe it is a silly question, but I'm trying to redirect the exit of "java -version" command to a file or variable but it doesn't work.
Server = Linux CentOS 6
My code in shell script
java -version >> test.txt
Also I'm trying to assign it to a variable:
JAVA_CHECK=`java -version`
Even running those command from command-line it still not working.
when I say it doesnt work, I mean that the exit of the command is being showed in my screen instead to redirect it to a file or wherever
...
java -version writes to stderr (fileno 2), not stdout (fileno 1). You can redirect stderr to a file:
java -version 2> test.txt
# cat test.txt
# java version "1.7.0_25"
# OpenJDK Runtime Environment
# [...]
Or you can redirect stderr to stdout:
java_check=$(java -version 2>&1)
# echo "$java_check"
# java version "1.7.0_25" OpenJDK Runtime Environment [...]