doubleDown questions

doubleDown answers

• XML::Simple's "XMLout" method is converting attributes to elements
• how to subtract fields pairwise in bash?
• How can I reduce one of the pipe in the following awk statement
• Using record separators in awk
• Extract XML Value in bash script [duplicate]
• Grep time command output
• Make Bash script exit and print error message if users invoke the script incorrectly
• Is there any difference between '=' and '==' operators in bash or sh
• Keep only the 1st line in every 4 lines and delete the other lines [duplicate]
• How can I use the cl command on PowerShell?