Linux bash for loop

In Linux bash, the for loop is used to iterate over a sequence of values. The syntax for a for loop is:

for variable in list; do
  commands
done

Where variable is the loop variable, list is a sequence of values, and commands are the commands to be executed for each iteration of the loop.

Here is an example of a for loop that iterates over a list of numbers and prints each number:

for i in 1 2 3 4 5; do
  echo $i
done

This will output the numbers 1 2 3 4 5.

You can also use the seq command to generate a sequence of numbers for the for loop. For example:

for i in $(seq 1 5); do
  echo $i
done

This will have the same effect as the previous example.

You can use the for loop to iterate over a list of strings, as well. For example:

for word in hello world; do
  echo $word
done

This will output the strings hello and world.

The for loop is a powerful tool for automating tasks and performing operations on multiple items in a list. You can use it in bash scripts or at the command line to iterate over a sequence of values.