Linux Question
Unable to run spark-shell from bin
I'm new to spark, I downloaded precompiled spark.
When I try to run spark-shell from bin folder on command line, it returns
:cd /users/denver/spark-1.6/bin
:spark-shell
command not found
But if I run it like
:cd /users/denver/spark-1.6
:./bin/spark-shell
it launches spark ..
can you please let me know why it is throwing error in the 1st case
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Answer Source
The reason why you can not run the spark-shell command in first case is because of environment variable
The terminal searches for executables in $PATH. This is a Unix environment variable that lists directories containing system binaries (such as ls, echo, or gcc). If you call an executable that's not in a $PATH directory (such as spark-shell), you need to indicate its absolute path in the file system.
In the terminal . is a synonym for the current working directory, thus ./bin/spark-shell can work properly. You could equally well call ./some/path/bin/spark-shell.
Hope it helps.
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