Stanford Research Systems SR780, Руководство по эксплуатации и программированию

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5-76 Disk Commands
SR780 Network Signal Analyzer
Disk Commands
FNAM (?) {s}
The FNAM command sets (queries) the Save/Recall File Name. All save and
recall disk operations use the name specified by this command. Be sure to use the
FNAM s command before any file operation commands.
For example, the “FNAM MYDATA.DAT” command sets the file name to
MYDATA.DAT. DOS file name conventions must be followed, i.e. file names
are 8 characters or less with an optional extension of up to 3 characters. If the
extension is omitted, the SR780 uses default extensions.
File access is to the current directory.
FDIR (?) {s}
The FDIR command sets (queries) the Save/Recall File Directory. All save and
recall disk operations use the directory specified by this command. Be sure to use
the FDIR s command before any file operation commands.
‘FDIR DIRNAME’ looks within the current directory for a sub-directory called
DIRNAME. If it exists, the current directory is changed to DIRNAME. FDIR
moves down a directory path one level at a time. Use multiple FDIR commands
to move down a directory path.
‘FDIR ..’ moves up one directory towards the root. ‘FDIR \’ sets the current
directory to the root.
Only the last directory in the path is displayed in the menu box.
MDIR s
The MDIR command creates directory s within the current directory.
For example, the “MDIR TODAY” command creates the sub-directory TODAY
within the current directory. DOS file conventions must be followed. Use FDIR
to set the current directory.
FXST ? s
The ‘FXST ? FNAME’ query returns a 1 if the file FNAME exists in the current
directory. 0 is returned if there is no file (or subdirectory) named FNAME in the
current directory.
Wild cards (* and ?) are not allowed in the file name. The volume label and sub-
directories are treated the same as actual files.
FREE ?
The FREE ? query returns the number of bytes available on the disk.