gniourf_gniourf questions

gniourf_gniourf answers

• grep sequence of chars and numbers (grep only)
• understanding bash exec {logout}?
• In bash script, is it possible to echo something into the beginning of file?
• bash, prompt for numerical input
• Create a file if it does not exist and write 0 in this file, otherwise do nothing [closed]
• bash list all subdirectories in a folder, write them to array to use in a menu
• Read quoted items with spaces into array
• Bash substring expansion on array
• Piping the output of a program that doesn't write to stdout
• Run several batch files but with exceptions