Viewing and editing HFS files

HFS files are viewed and edited in the same way as z/OSĀ® data sets (see Viewing and changing data sets). You can specify an existing HFS file or directory as input. When you use Edit, Z Data Tools uses the in-memory technique if the file fits into memory, otherwise it uses an auxiliary edit. In-place edit is not used.

A viewed or edited file can be interpreted as a text or binary file. If the Binary mode option is not selected, text mode is assumed and records are determined by delimiters. If you select the Binary mode option, the records are determined by record size defined in reclen, or by the default, 80 bytes. In View or Edit, records in text mode are assumed to be variable-length and up to 32752 characters long. However, if the size of the whole file is less than the record size limit, file size is assumed as the maximum record size.

If you specify a path to the HFS directory as an input file, Z Data Tools displays the directory list. You can select one or more HFS files and then view or edit them. If you select a subdirectory, Z Data Tools displays a new list, allowing selection on the next level. To return to the previous list, press the Exit function key (F3). In this way, you can navigate through the directories and choose the files to be displayed.

To display a pop-up window with the absolute path name (including the complete file name, which may be shortened on the list), position the cursor at the file name and press Enter.