Gordon Davisson questions

Gordon Davisson answers

• shell why brace need a space after it for grouped command
• Darwin kernel architecture and OS X, 64bit on 32bit kernel, how does this work?
• How to translate seconds to minutes & seconds in Bash?
• What is the rationale behind variable assignment without space in bash script
• "mkdir || echo && exit" exiting even when mkdir succeeds
• bash tar error doesn't create tar.gz
• /bin/dash: Bad substitution
• How to prevent code/option injection in a bash script
• How to use parameter expansion correctly in bash [duplicate]
• EOL character missing from file on Linux