linuxshellawksedash

How to reverse a list of words in a shell string?

I have a list of words in a string:

str="SaaaaE SeeeeE SbbbbE SffffE SccccE"

I want to reverse it in order to get

"SccccE SffffE SbbbbE SeeeeE SaaaaE"

How I can do that with ash?

Solution

  • You can use awk as follows:

    echo "$str" | awk '{ for (i=NF; i>1; i--) printf("%s ",$i); print $1; }'