Kay questions

• Mathematical expression in print command in Linux
• How to make a loop with multiple columns in shell?
• How to delete the rows whose column 2 and column 3 matches with some previous using awk?
• Command to execute a script later
• Count the number of connected non-zeros along rows and columns but not diagonaly in a Matrix in shell script
• Average of multiple files in shell
• Convert column to matrix format using awk
• awk print without a file
• Convert .txt to .csv in shell

Kay answers