By default, more will sound the bell if any illegal key (for example k) is pressed but you can change this behavior and display help instead using more -d option.
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## display help and prompt instead of ringging bell ## create a long file with 200 lines > myfile; i=1; while [ $i -le 200 ]; \ do echo "$i" >> myfile; ((i++)); done more myfile ## by default more will sound the bell ## if any illegal key is press like k more -d myfile ## supress the bell alert when illegal ## for example k is pressed rm myfile |