for loop command line code example
Example 1: bash single line loop
while true; do foo; sleep 2; done
Example 2: bash for loop
for VARIABLE in file1 file2 file3
do
command1 on $VARIABLE
command2
commandN
done
Example 3: macos terminal for loop
for i in {1..100}; do echo http://www.example.com/${i}.jpg; done