Name

---

      EXPAND_TILDE()
             

Purpose

---

      Expand tilde in UNIX directory names
             

Calling Sequence

---

      IDL> output=expand_tilde(input)
   

Inputs

---

      INPUT = input file or directory name, scalar string

Output

---

      Returns expanded filename, scalar string
             

Examples

---

      output=expand_tilde('~zarro/test.doc')
              ---> output='/usr/users/zarro'

Notes

---

      This version of EXPAND_TILDE differs from the version in the Solar
      Library in that it does not call the functions EXIST and IDL_RELEASE.
      However, it should work identically.

Procedure Calls

---

      None.

Revision History

---

      Version 1, 17-Feb-1997, D M Zarro. Written
      Transfered from Solar Library W. Landsman Sep. 1997
      Made more robust D. Zarro/W. Landsman Sep. 2000
      Made even more robust (since things like ~zarro weren't being expanded)
      Zarro (EITI/GSFC, Mar 2001)