openSUSE Leap 15.2

# zypper patch
# zypper update

# zypper info -t pattern devel_basis
# zypper install -t pattern devel_basis

例：ifconfig

$ ifconfig

If 'ifconfig' is not a typo you can use command-not-found to lookup the package that contains it, like this:
    cnf ifconfig

'cnf <command>'でコマンドを含むパッケージを検索してくれる．

$ cnf ifconfig

The program 'ifconfig' can be found in following packages:
  * net-tools-deprecated [ path: /bin/ifconfig, repository: zypp (repo-oss) ]
  * net-tools-deprecated [ path: /usr/bin/ifconfig, repository: zypp (repo-oss) ]

Try installing with:
    sudo zypper install net-tools-deprecated

System Settings>Account Detailsの[Enable the KDE wallet subsystem]のチェックボックスを外す．

+ unset SSH_ASKPASS