Note: When you use the %SYSEXEC macro statement, if the UNIX command you specify includes a semicolon, you must enclose the UNIX command in a macro quoting function.Refer to SAS Macro Language: ...

Shell basics. The Unix command line shell is roughly equivalent to the command window in Microsoft Windows (cmd or PowerShell). The commands we walk through below will work on any Unix-like system ...

At Bell Labs, Ritchie met Thompson, who had worked on a failed project to write a new operating system. The pair re-imagined the idea and developed UNIX in conjunction with the C programming language.