Walter A questions

Walter A answers

• find lines from one file in another
• While read line with grep
• Fetching last n characters of string in ksh
• Iterating over command-line argument pairs
• Storing Jenkins configuration for multiple environments
• how delete space in blank only between " " with bash
• How to compare two csv files in UNIX and create delta ( modified/ new records )
• Windows equivalent of Unix "find" command?
• how to sum file size from ls like output log with Bytes, KiB, MiB, GiB
• sed: -e expression #1, char 23: unknown option to `s' [duplicate]