The PIPE Command

More recent versions of OpenVMS include a UNIX style PIPE command. PIPE allows you to perform multiple commands, command pipelining, and other functions.

You may perform multiple commands by separating them using semicolons:

    $ PIPE command ; command 

Command pipelining allows you to use the output of one command as the input for another. You specify PIPE command elements by separating then using vertical bars (pipe symbols). This example performs a SHOW SYSTEM command and then searches the output for the word server:

     $ PIPE SHOW SYSTEM | SEARCH SYS$INPUT "SERVER"     0000008A AUDIT_SERVER    HIB      9   120421   0 00:26:08.43   1642266   174     0000008D SECURITY_SERVER HIB     10    18124   0 00:28:48.99   5434137   110     0000008E TP_SERVER       HIB      9   535733   0 01:34:08.81   1818106   158     00000098 NAMED_SERVER    HIB      6   918580   0 00:40:35.06   1292097   659     0000009C WWW server 80   HIB      6   914949   0 01:30:22.63    765716    722 N     0001ED9D WEBSERVER_1     LEF      6       41   0 00:00:01.27     54170     43 S     000268AC SERVER_001A     LEF      6     4583   0 00:00:52.33     36800     43 N     00028633 SERVER_0013     LEF      6      803   0 00:00:06.49      3960    154 N     00027F36 SERVER_0010     LEF      6      303   0 00:00:02.58      1886    126 N     0001E3B8 SERVER_000E     LEF      6      321   0 00:00:02.51      1943    115 N     000001BC SERVER_000A     LEF      6   192107   0 00:39:33.46   1216898     43 N 

Use HELP PIPE for further information about the capabilities of PIPE.