Interesting drive display utility

[eoredson]

In this post is an interesting drive display utility which lists drive volumes and serial numbers using a shell to vol:

Code: (Select All)

Rem Utility to display drives and volume and serial. PD 2023.
Dim Shared drives(26) As Integer
Dim Shared labels(26) As String
Dim Shared serial(26) As String

For i = 1 To 26
  d$ = CheckDrive(i)
  If d$ <> "" Then Print d$
Next
End

Function CheckDrive$ (i)
  t$ = "tempfile.arg"
  i$ = Chr$(i + 64) + ":"
  j$ = "cd " + i$
  Shell _Hide j$ + " > " + t$
  Close
  Open t$ For Input As #1
  If EOF(1) = 0 Then
      Line Input #1, s$
      s$ = LCase$(s$)
      If s$ = "path not found" Then
        ' eat
      Else
        Shell _Hide "vol " + i$ + " > " + t$
        Close
        Open t$ For Input As #1
        z = 0
        Do Until EOF(1)
            Line Input #1, s$
            If Len(s$) Then
              z = -1
              Exit Do
            End If
        Loop
        If z Then
            Close
            Open t$ For Input As #1
            x = 0
            Do Until EOF(1)
              Line Input #1, s$
              'Print s$
              If LCase$(s$) = "invalid drive specification" Then
                  Exit Do
              Else
                  drives(i) = -1
                  If InStr(s$, " is ") Then
                    x = x + 1
                    ' volume in drive C is Label
                    If x = 1 Then
                        labels(i) = Mid$(s$, InStr(s$, " is ") + 4)
                    End If
                    ' volume serial number is xxxx-xxxx
                    If x = 2 Then
                        serial(i) = Mid$(s$, InStr(s$, " is ") + 4)
                    End If
                  End If
              End If
            Loop
        End If
      End If
  End If
  q$ = ""
  If drives(i) Then
      q$ = Chr$(i + 64) + ":\" + labels(i)
      If Len(serial(i)) Then
        q$ = q$ + " [" + serial(i) + "]"
      End If
  End If
  CheckDrive = q$
End Function

[euklides]

Works only with Windows "english" .

[MasterGy]

this might work on linux and windows because it only uses internal commands.

Code: (Select All)

On Error GoTo nodrive

For drive = 0 To 25

    drive$ = Chr$(65 + drive) + ":"

    checkdrive = 1

    ChDir drive$

    If checkdrive Then Print drive$; " is available"

Next drive

On Error GoTo 0



End



nodrive:

checkdrive = 0

Resume Next

[a740g]

this might work on linux and windows because it only uses internal commands.

Code: (Select All)

On Error GoTo nodrive

For drive = 0 To 25

    drive$ = Chr$(65 + drive) + ":"

    checkdrive = 1

    ChDir drive$

    If checkdrive Then Print drive$; " is available"

Next drive

On Error GoTo 0



End



nodrive:

checkdrive = 0

Resume Next

Without using error handlers and CHDIR:

Code: (Select All)

PRINT DriveExists("c")



FUNCTION DriveExists%% (driveLetter AS STRING)

    DriveExists = _DIREXISTS(LEFT$(driveLetter, 1) + ":\")

END FUNCTION

[PhilOfPerth]

Noice!
Can it also be made to diplay drive occupancy size?

[eoredson]

Noice!
Can it also be made to display drive occupancy size?

Yes, you could easily shell to get drive free space:

Code: (Select All)

Rem sample program to get drive space using shell. v1.1a PD 2024.
On Error GoTo Hell
Color 15
Input "Drive letters"; D$
Do
   If InStr(D$, ":") Then D$ = Left$(D$, InStr(D$, ":") - 1) + Mid$(D$, InStr(D$, ":") + 1) Else Exit Do
Loop
Do
   If InStr(D$, "\") Then D$ = Left$(D$, InStr(D$, "\") - 1) + Mid$(D$, InStr(D$, "\") + 1) Else Exit Do
Loop
F = 0
For L = 1 To Len(D$)
   E$ = Mid$(D$, L, 1)
   C# = GetDrive(E$)
   If C# > 0# Then
      Color 14
      Print "Drive "; E$; " bytes free"; C#
      F = F + 1
   End If
   101
Next
Color 15
If F Then Print "Drives found"; F Else Print "No drives found."
End

Hell:
Print "Invalid drive reading "; E$
Resume 101
End

Function GetDrive# (D$)
   D$ = UCase$(D$)
   If D$ >= "A" And D$ <= "Z" Then
      D$ = D$ + ":\"
      ' create default file.
      F$ = D$ + "unknown.ick"
      Open F$ For Output As #1
      Print #1, "testdatafile"
      Close #1
      ' open shell of drive.
      F$ = "DIR " + D$ + "unknown.ick > tempfile.arg"
      Shell _Hide F$
      Open "tempfile.arg" For Input As #1
      Do
         If EOF(1) Then Exit Do
         Line Input #1, X$
         X$ = LCase$(X$)
         If X$ = "invalid drive specification" Then Exit Do
         If InStr(X$, "bytes free") Then
            X$ = Left$(X$, InStr(X$, "bytes free") - 1)
            Z = InStr(X$, "dir(s)")
            If Z Then X$ = Mid$(X$, InStr(X$, "dir(s)") + 7)
            X$ = LTrim$(RTrim$(X$))
            If Len(X$) Then
               Do
                  Z = InStr(X$, ",")
                  If Z Then
                     X$ = Left$(X$, Z - 1) + Mid$(X$, Z + 1)
                  Else
                     Exit Do
                  End If
               Loop
               C# = Int(Val(X$))
               GetDrive = C#
               Exit Do
            End If
         End If
      Loop
      Close
      Kill D$ + "unknown.ick"
      Kill "tempfile.arg"
   End If
End Function