Before everyone starts modifying their programs, modifying all their print statements, I'd like to point old and trusty cat
. Everyone knows cat
. Not everyone knows its options. -E
is very useful in this regard: it makes cat
print a $ at the end of each line. Other useful cat
options for debugging output: -T
which displays tabs as ^I
, and -v
which will show non-printable and non-ASCII characters using ^
notation. With some versions of cat
can also be written as cat -A
cat is your friend. Never debug without it!
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