N automatically scrolling, time-delayed Unix pager command

lesspagerunix

I'd like to view output of big commands slowed down, like a slideshow with e.g. automatic, 500ms delay between each scroll. What is the simplest way to achieve this?

Best Answer

A simple solution using bash:

function scroll
{
    while read -r ; do echo "$REPLY" ; sleep ${1:-0.5} ; done
}

Usage

long_command | scroll [delay]

delay is optional and defaults to 0.5.

Exit with Ctrl+C

Related Solutions

Documenting Unix commands on the command line

[script.ksh] run with "script.ksh ls"

#!/bin/ksh

OUTPUT="cmd.txt"

if [[ $# -eq 0 ]];then
  print "no command to run"
  exit
fi

# dump command being run to file
echo $@ >> $OUTPUT

# run command and output stdout to the screen and file
$@ | tee -a $OUTPUT

Bash Script – Replace Text Between Markers with Another File

lead='^### BEGIN GENERATED CONTENT$'
tail='^### END GENERATED CONTENT$'
sed -e "/$lead/,/$tail/{ /$lead/{p; r insert_file
        }; /$tail/p; d }"  existing_file

Best Answer

Usage

Related Solutions

Documenting Unix commands on the command line

Bash Script – Replace Text Between Markers with Another File

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