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hello everyone,
I am able to go further with getline from exact terminal device.

From my UNIX prompt, my terminal device is /dev/pts/26.
$ > tty
/dev/pts/26
$ >

So, I changed the getline...

Thank you MajorMark.

my purpose for this scripting is to provide exception processing notification and acknowledgement.

I want to pause the screen that is scrolling as the messages are coming...

Hello,
I am writing a shell script to search an active log file. If an "error" or "aborted" found, echo an acknowledgment message and wait until the user presses ENTER key.

tail -f log.file...