Shell Ops
String operations
- Split string
${var#*SubStr} # will drop begin of string up to first occur of `SubStr`
${var##*SubStr} # will drop begin of string up to last occur of `SubStr`
${var%SubStr*} # will drop part of string from last occur of `SubStr` to the end
${var%%SubStr*} # will drop part of string from first occur of `SubStr` to the end