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+.help back Feb86 language
+.ih
+NAME
+back -- return to the previous directory
+.ih
+USAGE
+back
+.ih
+PARAMETERS
+None.
+.ih
+DESCRIPTION
+\fIBack\fR is used after a call to \fIchdir\fR or \fIcd\fR to return to the
+previous directory. Repetitive calls to \fIback\fR may be used to toggle
+between two directories.
+.ih
+EXAMPLES
+1. Go to the logical directory "dataio".
+
+ cl> cd dataio
+
+2. Return to the previous directory, and then go back to the dataio directory.
+
+ cl> back;back
+.ih
+SEE ALSO
+chdir, pathnames
+.endhelp