In reverse-i-search (Ctrl+R ) ,Any method to switch between similar commands in history

Keep pressing Ctrl-R and it will traverse your history.

If your search terms are a bit more complicated/ not contiguous, another option is to grep among the history results, e.g.:

history 300 | grep scp | grep important$

This will return a list of commands in your history that match, such as:

3323  scp file1 [email protected]:/home/user1/linuxfiles/samplecode/important
3325  scp file1 [email protected]:/home/user1/winfiles/samplecode/important

And you can then execute the relevant command with !3325.

I sometimes find this useful when running a lot of similar commands and may have to press Ctrl+R many times to get back to the exact command.

There is great alternative to Ctrl+R

install https://github.com/dvorka/hstr

run it with hh

it shows a list of you all the last commands executed (contents of ./bash_history)

if you start typing the list will be filtered based on what you type

you can use Up/Down arrows to select the desired command and select it with Enter