[ShellScripting] `While` bad format with condition "<="

[DevDorrejo]

In the next code

  while [ i <= "${ips_route[@]}" ]; do
        if [ $(grep nameserver /etc/resolv.conf | sed 's/^.* //') != ]; then
            true
        fi

when i do shfmt file.

will sort the while the next way

while [ i "${ips_route[@]}" ] <=; do
                if [ $(grep nameserver /etc/resolv.conf | sed 's/^.* //') != ]; then
                        true
                fi
        done

and will break the code.

using [[ ]] will stop this happen, but using a simple [] the format will brake the script.

thanks

[mvdan]

I don't think that code does what you think it does; [ does not have operators like <=, you are just redirecting stdin from a file called =, as in < =. You probably want [ foo -le bar ], for "less or equal".

[DevDorrejo]

yeah, was the "less or equal", i'm sorry for this.