[ Process = ] EXEC Command [ WAIT ] [ FOR { { READ | INPUT } | { WRITE | OUTPUT } } ] [ AS Name ]
EXEC Command TO Variable
Executes a command. An internal Process object is created to manage the command.
The command must be specified as an array of strings containing at least one element. The first element of this array is the name of the command, and the others are optional parameters.
Name is the event name used by the Process object. By default, it is "Process".
You can get a reference to the internal Process object created by using an assignment.
If you use the second syntax, the command is executed, the interpreter waiting for its end, and the complete command output is put in the specified string.
' Get the contents of a directory EXEC [ "ls", "-la", "/tmp" ] WAIT
' Get the contents of a directory into a string DIM sOutput AS String EXEC [ "ls", "-la", "/tmp" ] TO sOutput
' Get the contents of a directory into a string, but in background DIM sOutput AS String ' A specific event name is used EXEC [ "ls", "-la", "/tmp" ] FOR READ AS "Contents" ... PUBLIC SUB Contents_Read() DIM sLine AS String READ #LAST, sLine, -256 sOutput &= sLine END PUBLIC SUB Contents_Kill() PRINT sOutput END
![]() | If you want to know how many bytes you can read in a Process_Read event handler, use the Lof function. |
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As arguments are sent directly to the process, you do not have to quote them, as you must do in a shell.
' perl -e 'print while <>;' becomes EXEC [ "perl", "-e", "print while <>;" ] FOR READ WRITE |