bash parameter count
# use $#
# say if you are expecting exactly 2 parameters
# -ne is bash's way of saying not equal
if [[ "$#" -ne 2 ]]; then
echo "this script needs exactly 2 parameters"
exit 1
fibash parameter count
# use $#
# say if you are expecting exactly 2 parameters
# -ne is bash's way of saying not equal
if [[ "$#" -ne 2 ]]; then
echo "this script needs exactly 2 parameters"
exit 1
fibash check length of variable
myvar="some string"
size=${#myvar}Copyright © 2021 Codeinu
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