Linux – Capturing the console output

bashconsolelinuxshell

I am running a Hadoop hive query from shell script. This is how I am doing it in my shell script.

echo "SELECT COUNT(*) FROM test" | hive

I want to capture the output whatever hive command outputs. So, I am running my shell script as:

./hivequery.sh 2>&1 | tee output.txt

But, I am not able to capture the output of the hive command. How can I do that?

Best Answer

Got it. I added the redirection operator in the shell command itself inside the script.

echo "SELECT COUNT(*) FROM test" | hive 2>&1

The script too worked.

script -c ./myscript.sh output.txt

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Then use sed to sanitise it.

E.g;

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% ssh user@host

[some stuff]

% exit
Script done, output file is mysession

% sed -e '
s/'`echo "\033"`'\[[[:digit:]]*\(;[[:digit:]]*\)*[[:alpha:]]//g; # ANSI Escape sequences (perhaps over-generalised)
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This could be enhanced to delete the character before a ^H, et cetera, but you specified that you didn't want that.

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Use full path!

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Best Answer

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