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useful-app.md

Java profiling

async-profiler

Low overhead sampling profiler for Java that does not suffer from Safepoint bias problem.

./profiler.sh -e wall -t -i 5ms -f result.svg 8983

Shell

flock

Manage locks from shell scripts

touch lock; flock -x lock -c 'echo Start; /bin/sleep 10'

parallel

Build and execute shell command lines from standard input in parallel

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