Calling ‘rpm -i’ might fail at some Linux

Scripts in directory ‘podman_cli’ check for an installed podman
calling ‘rpm -i’. As not all Linux systems have rpm installed, that
might fail. Suggest to use POSIX command ‘type’ instead.

There is also an error WRT test in following line. Replace double
brackets by single one.

Example error when running podman_pause_unpause.sh:

./podman_pause_unpause.sh: 24: rpm: not found
./podman_pause_unpause.sh: 25: [[: not found

Start in the scripts under podman_cli, including podman_pause_unpause.sh, and inspect how they check for an installed podman and test conditions. Replace the rpm-based check and double-bracket test syntax as described, then run the affected scripts on a system without rpm to confirm they no longer produce the reported errors.

Written by the indexing model from the issue text.