From: Junkone Date: 2010-08-08T03:45:11+09:00 Subject: trouble with mysqldump when i try program="C:\\Program Files\\MySQL\\MySQL Server 5.1\\bin\ \mysqldump.exe" irb(main):008:0> system(program) Usage: mysqldump [OPTIONS] database [tables] OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...] OR mysqldump [OPTIONS] --all-databases [OPTIONS] it works and is able to launch myssqldump.exe so i want to setup a backup process using ruby. however the next step does not work. dont know why? destination="e:\\tradingtools\\databackup\\#{dt}.sql" system("#{program} --user=root --password=password dbtrader >#{destination}") error that i get is 'C:\Program' is not recognized as an internal or external command, operable program or batch file.