I am using if-else statement to search for keywords and displaying the results in the terminal, here's an example of my code.
read finding
if ["$finding" != "" ]; then
grep $finding information.txt
else
echo "No such information in database."
fi
But the terminal does not display anything if i key in information that does not exist. I started shell about a week back, might need more explanation on how certain code works.
[ (it is a command)-n to test if length of string is nonzero, or -z to test if it is zeroSo:
read finding
if [ -z "$finding" ]; then
echo "You didn't enter anything"
else
grep "$finding" information.txt
if [ ! "$?" -eq 0 ]; then
echo "No such information in database."
fi
fi
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