45 lines
833 B
Bash
45 lines
833 B
Bash
#!/bin/bash
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# diffweb - Checks a website for changes
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# Usage: diffweb https://domain.tld
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# Author: Justin Oros
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# Revised: 2020 JUNE 25
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FILE1=/tmp/file1
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FILE2=/tmp/file2
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if [ -z $1 ]
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then
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echo "Usage: diffweb https://domain.tld"
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exit 1
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fi
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# check to see if file1 exists
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if test -f $FILE1
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then # if file1 exists
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# get website data
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# store to file2
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curl -s $1 > $FILE2
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else # if file1 does not exist
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# notify user of first run
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echo "diffweb has not run before for $1"
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# get website data
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# store to file1
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curl -s $1 > $FILE1
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fi
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# check to see if file2 exists
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if test -f $FILE2
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then
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# compare files
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if cmp -s $FILE1 $FILE2
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then
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echo "$1 has not changed."
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else
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# notify user website has changed
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echo "$1 has been updated!"
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# clone file2 to file1
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cat $FILE2 > $FILE1
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fi
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fi
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