newbee
Reputation: 46
shell: set variables just before command
HADOOP_ROOT_LOGGER=DEBUG,console hadoop fs -text /foo/bar
This is a sample shell command. What's the exact meaning of the shell grammar (set variable just before command)?
Upvotes: 0
Views: 86
Answers (1)
Peder Klingenberg
Reputation: 41095
It sets the value of that variable in the environment of the command you are running, without permanently affecting the environment of your shell.
Upvotes: 1
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