Remove local git branches which desn't exist on remote anymore

git remote prune --dry-run origin

PostreSQL database backup and restore

pg_dump -U db_manager --clean -d user_db > dump.sql psql -d user_db -f dump.sql

Bypass UEFI provided Windows Key

E.g. if you want to install Windows Professional Box on computer with Windows Home OEM:

1. Create bootable pendrive with Windows from DVD.

2. Create file /sources/PID.txt with content:

[PID]
Value=[youre product key here]

Recording application activity

java -XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:StartFlightRecording=duration=60s,filename=myrecording.jfr -jar app.jar

source