# jmeter > Open source Java application designed for load testing functional behavior and measure performance. > More information: . - Run a specific test plan in nongui mode: `jmeter --nongui --testfile {{path/to/file}}.jmx` - Run a test plan in nongui mode using a specific log file: `jmeter --nogui --testfile {{path/to/file}}.jmx --logfile {{path/to/logfile}}.jtl` - Run a test plan in nongui mode using a specific proxy: `jmeter --nongui --testfile {{path/to/file}}.jmx --proxyHost {{127.0.0.1}} --proxyPort {{8888}}` - Run a test plan in nongui mode using a specific JMeter property: `jmeter --jmeterproperty {{key}}='{{value}}' --nongui --testfile {{path/to/file}}.jmx`