BASH: can grep on command line, but not in script

Question

Did this million times already, but this time it's not working I try to grep "$TITLE" from a file. on command line it's working, "$TITLE" variable is not empty, but when i run the script it finds nothing

*title contains more than one word

echo "$TITLE"
cat PAGE.$TEMP.2 | grep "$TITLE"

what i've tried:

echo "cat PAGE.$TEMP.2 | grep $TITLE"

to see if title is not empty and file name is actually there

Answer 1

Are you sure that $TITLE does not have leading or trailing whitespace which is not in the file? Your fix with the string would strip out whitespace before execution, so it would not see it.

For example, with a file containing 'Line one':

/home/user1> TITLE=' one '
/home/user1> grep "$TITLE" text.txt
/home/user1> cat text.txt | grep $TITLE
Line one

Try echo "<$TITLE>", or echo "$TITLE"|od -xc which sould enable you to spot errant chars.