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codecaine · (This post was last modified: 01-20-2010 10:34 AM by codecaine.)

Video record your mac with my BASH script.
This script I created takes snap shots of the system screen at interval seconds giving. For example:

Code:

./sys_mon 5

This code will save a snapshot every 5 seconds with a time stamp on the image. Each file is save in a $HOME/sys_monitor that is made with the date it start it was taken. A user can load all the images in a giving folder then put it in I movie and convert it to a movie the the giving time laps.

Code:

#!/bin/bash

############################################################

#System Monitor v1.0 coded by codecaine aka Jerome Scott II#

############################################################

#Error return values 

NO_ARGUMENT=1;

FAIL_CREATE_DIRECTORY=2;

INVALID_NUMBER=3;

TIME_STAMP="$1T`date +%s`"; #time stamp for files $1T is the interval seconds for each shot taken appended to it is the timestamp

DATE=`date "+%d-%m-%y"`; #date folder time where files will be sate

SAVE_LOCATION="$HOME/sys_monitor/$DATE"; #location of saved files

FILE_TYPE='.jpg'; #file types

FILENAME="$SAVE_LOCATION/m$TIME_STAMP$FILE_TYPE"; #filename format

#program usage display function

usage()

{

    echo  'Usage';

    echo "     $0 seconds for each snapshot or $0 -k to terminate the program from running";

    echo "Example:"

    echo "     $0 5";

}

#check if input is a number

isNumber()

{

    #Check if user just enter a number. If the number is empty they didn't put in a valid number and the function returns 1 else return 0 on success

    local number=`echo "$1" | sed -n '/^[0-9]*$/p'`

    if [ -z $number ]

    then

        return 1;

    else

        return 0;

    fi

}

#check for atleast 1 arugment entered

if [ $# -lt 1 ]

then

    usage;

    exit $NO_ARGUMENT;

fi

#Stop all instances of this program from from running

if [ "$1" = "-k" ]

then

    echo "kill"

    killall bash

fi

#check for valid input

if ! isNumber $1

then

    usage

    exit $INVALID_NUMBER;

fi

#check if the directory exist

if [ -d $SAVE_LOCATION ]

then

    echo "Monitored files saving: $SAVE_LOCATION";

    screencapture -x $SAVE_LOCATION;

else

    if mkdir $SAVE_LOCATION 

    then

        echo "Monitored files saving: $SAVE_LOCATION";

    else

        echo "Failed to directory to to store files";

        exit $FAIL_CREATE_DIRECTORY;

    fi

fi

while true

do

    #sleep for a giving amount time before the next snapshot

    sleep $1;

    #update time stamp

    TIME_STAMP="$1T`date +%s`";

    #update filename

    FILENAME="$SAVE_LOCATION/$TIME_STAMP$FILE_TYPE";

    screencapture -x "$FILENAME";

done

***drdebcol*** · 01-20-2010, 07:24 PM

It is good how you made that input check and usage.