August 2018
2
- `time` -- time command execution```▶ time node index.jsnode index.js 0.07s user 0.02s system 95% cpu 0.092 total```
- unzip *.tar.gz tar -xvzf foo.tar.gz* `f`: specify file name* `z`: use gzip* `x`: extract* `v`: verboseto specify output directory (unless it uses current dir): tar -xvzf foo.tar.gz -C output_dir