Ssh Ls Hidden File In Var And Tmp And Echo Exists

Identifies a conditional existence check where a hidden file is listed and, if successful, triggers a confirmation string via echo. The use of 2>/dev/null suppresses errors if the file does not exist, while && echo 'exists' confirms presence only on success. This pattern is commonly used in scripted post-staging validation to verify that a payload, credential file, or marker file was successfully written.