su - <sidadm>
find /tmp -user $USER -name ".sapstream*" -exec rm {} + 

Linux streams refer to the concept of input/output (I/O) streams in the Linux operating system. In Linux, everything is treated as a file, including input and output devices. Streams are a way to handle data flow between these files and programs. Linux streams are categorized into three types: standard input (stdin), standard output (stdout), and standard error (stderr). These streams can be redirected, piped, or manipulated using various Linux commands and utilities. Overall, streams are an essential part of the Linux I/O system and are used extensively in various Linux applications, for example, SAP Netweaver.