Is there a better way to run a command N times in bash?

Another simple way to hack it:

seq 20 | xargs -Iz echo "Hi there"

run echo 20 times.

Notice that seq 20 | xargs -Iz echo "Hi there z" would output:

Hi there 1
Hi there 2
...

If you're using the zsh shell:

repeat 10 { echo 'Hello' }

Where 10 is the number of times the command will be repeated.

Using a constant:

for ((n=0;n<10;n++)); do
    some_command; 
done

Using a variable (can include math expressions):

x=10; for ((n=0; n < (x / 2); n++)); do some_command; done

If your range has a variable, use seq, like this:

count=10
for i in $(seq $count); do
    command
done

Simply:

for run in {1..10}; do
  command
done

Or as a one-liner, for those that want to copy and paste easily:

for run in {1..10}; do command; done

Related