John B questions

John B answers

• How to write a shell script to take the first record for a particular column?
• Pass the matched value to a function, and replace with the return value
• execute shell script directly differ from using sh command in ubuntu 12.04
• 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?