Bash for Loop

Linux bash provides for loop in order to itarete over different things in Linux and bash. We can use bash for loop in order to iterate over a command output which containts multiple items or execute a bash command with different arguments by providing arguments to for loop.

for Loop Syntaxes

The for loop has two popular syntax in order to be with bash.

for VARIABLE in 1 2 3 4 5 .. N
do
    command1
    command2
    commandN
done

for VARIABLE in File1 File2 File3 .. FileN
do
    command1
    command2
    commandN
done

for VARIABLE in $(COMMAND)
do
    command1
    command2
    commandN
done