Have you ever had a script or program running in the background, with no TTY/console, asking for input to continue running? How do you tell it ‘y’ so it will keep going? By faking input using TIOCSTI! I had this issue when running a long chain of tasks in an ansible playbook, and a command […]
Faking input with IOCTL/TIOCSTI Read More »
So I was writing this script that logged certain things to a file using a regular redirect. My script was running various commands that outputted a random amount of lines, all in random formats. I wanted to have a timestamp prefixing all of that, similar to what you get in logs written by syslog. I
Prefix command output in a shell with timestamp Read More »
If you’ve ever ran tail -f on a busy file and tried to find certain words or patterns as they fly by, then this little “trick” might be of some help:
Tail with word highlighting Read More »