Editing Files and Parameters

• *eparam* - edit parameter files

  Accesses the parameter file parameter file for the specified task in an editor. Move the cursor to the item to be changed, type changes, and hit a carraige return. When finished, exit with <ctrl> x (emacs) or <ctrl> d (vi). Type ``<esc>-?'' within a parameter editor for more details on commands.

• *tupar* - Edit table headers

  Table files (*.tab) consist of a header including a variety of parameters and the table itself. It is possible to edit the header using tupar and the table with tedit provided you have write-access to the file. A look at the help file is highly recommended for tupar.

• *tedit* - edit table data

  Allows editing of .tab tables. Works like emacs but uses <ctrl> D to exit.

• *hedit* - edit image file header

• *qphedit* - edit .qp file headers

Parameters may also be set, for the current command-line execution only, by indicating the parameters' temporary value on the command line:

  imhead xdata$rp110590_img  longhead=yes

This will not change the value stored in the parameter file.

Boolean parameters may be set with shorthand notation.

  imhead xdata$rp110590.img longhead+
  imhead xdata$rp110590.img longhead-