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06-06-2005
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An Idea for Tokenizing
One of the monitoring tools in Java is called `jps`, and it monitors all Java processes that are run by the user, an example output would be like this: 3459 Jps 2348 test 2311 Util where the first column represents Process IDs and the second column represents Java processes names. Therefore, if I wanted to find the process ID for some Java process, say test, I could type `jps | grep test` and then take the first argument in the line, which would be the process ID. Now I had an idea to do it in a simpler way (rather than just writing a C or Java program), I could write a simple sh script that goes like this (call it tokenizer) Code:
#!bin/sh echo $1 and by typing `chmod +x tokenizer` and then: `jps | grep test | tokenizer` I would think I should get 2348 as an output to the shell, which is the PID for `test` Java process, but that did not happen. Anybody know why? |
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