John B questions

John B answers

• How to raise exception when function call is missing an argument in Python
• Bash script to backup server upload folders
• ls with numeric range doesn't work inside bash script
• Need to grep /etc/hosts with a known hostname, and then capture the ip address for the hostname from /etc/hosts
• Check if a given character is whitespace
• How to check the process scheduling policy other than `ps` output
• What is the best way to count "find" results?
• How to escape history expansion exclamation mark ! inside a double quoted string?
• Python list error: [::-1] step on [:-1] slice
• how to check if a file exist using adb shell