+sys-user_modify() {
+ # Modify the existing user named $SYS_USER_NAME to match the values
+ # contained in the following variables:
+ #
+ # * SYS_USER_UID
+ # * SYS_USER_SHELL
+ # * SYS_USER_HOME
+ # * SYS_USER_GROUPS
+ #
+ usermod ${SYS_USER_UID:+--uid }"${SYS_USER_UID}" \
+ ${SYS_USER_GROUPS:+--append --groups }"${SYS_USER_GROUPS}" \
+ --shell "${SYS_USER_SHELL}" \
+ --home-dir "${SYS_USER_HOME}" \
+ "${SYS_USER_NAME}"
+}
+