capser questions

• bash variable interpolation separate variables by a hyphen or underscore
• Use Perl regex attributes in awk
• Date::Calc - format the day and month
• ssh with a set -o vi as first interactive command
• Using __DATA__ in a program
• formatted printing in awk [duplicate]
• Using 'if' within a 'while' loop in Bash
• In Perl, what is the difference between @array[1] and $array[1]?
• bash storing the output of set -x to log file
• bash - pipe creates a subshell

capser answers