bash snips

bash.sh

# input args length
echo 'args length: ' $#

# access arg2
echo 'arg[2]: ' ${2}

# slice (from 2)
echo 'slice[2-]: ' ${@:2}

# declare array
array1=(1 2 3 4 5)

# loop array 
for arg in $@
do
  echo $arg
done

# array length
echo 'legth: ' ${#array1[*]}

# function declaration
function say_hello {
  echo 'hello ' $1
  exit
}
say_hello 'Dmitry'

# if else
if [ $1 = "start" ]; then
   echo 'start'
else
   echo 'no start'
fi