The File System . This section describes how you can create new files, copy existing files, and delete obsolete files. ... RENAME to change the name of a file. ... Files can be created in several ways: text can be entered from the keyboard via the CREATE command, an editor can create a file, as can a running program, and files can be copied from other directories. ... To delete obsolete files, use the DELETE command followed by a file name or file name template (wildcards). ...

. To remove a directory that is a symbolic link that points to another directory use the command: rm directory_name . Notice that the directory does not need to be empty and you do not have to use the rmdir command. You are not really removing a directory, just a named symbolic link that points to the "real" directory.

... This page deals with the operational issue of how to fill the calibration memory properly, and with the interplay of createAB and that memory. The calibration memory is the list of all calibration product files currently available for association. ... The dynamic calibrations are created by the pipeline from raw files and are stored in $DFO_CAL_DIR/<date>. ... DFO_CAL_DIR/VCAL is the pool of virtual calibrations. ... The calibration memory is managed by DFOS in the following way: . ...

... From this list the extraction stage creates images, spectra, and rates files. These products are aimed to adhere to OGIP standards as closely as possible. Please note, however, that it is likewise possible to create data sets which do not map onto any standard OGIP file type, e.g. PHA-versus-wavelength image for RGS. ... For binned products, binning of a given column is in general controlled by a minimum value, a binning factor, and a maximum value. ...

... This section describes three functions which have been created to cleanup defects in images. The first two functions for cleaning rows and columns are particularly useful for CCD--images. ... These can often be removed with the commands: MODIFY/COLUMN INPUT OUTPUT [C or V] [columns] . ... This is particularly useful for removing the permanent defects which may exist in the CCD--frames and which cannot be removed by the MODIFY/COLUMN or MODIFY/ROW commands. ...

... Classes . Files . ... casa . casa::SymLink . ... The default constructor creates a SymLink with path "." SymLink (const Path &name) . ... SymLink (const File &name) . ... create (const Path &target, Bool overwrite= True ) . ... copy (const Path &target, Bool overwrite= True ) const . ... The class SymLink handles SYMbolic LINKs in the file system. ... An exception is thrown if the path exist and is no symbolic link or if it does not exist, but cannot be created. casa::SymLink::SymLink . ...

... CREATE FULLTEXT CONFIGURATION -- create full-text configuration . CREATE FULLTEXT CONFIGURATION cfgname PARSER prsname [ LOCALE localename ] [ AS DEFAULT ]; CREATE FULLTEXT CONFIGURATION cfgname [ { PARSER prsname | ... PARSER . ... LOCALE . ... Create new configuration test with default parser and ru_RU.UTF-8 locale. CREATE FULLTEXT CONFIGURATION test PARSER default LOCALE 'ru_RU.UTF-8'; =# \dF+ test Configuration "public.test" Parser name: "pg_catalog.default" Locale: 'ru_RU.UTF-8' Token | ...

Next: Using a swap space Up: Memory Management Previous: What is virtual memory? A swap file is an ordinary file; it is in no way special to the kernel. ... After you have created a swap file or a swap partition, you need to write a signature to its beginning; this contains some administrative information and is used by the kernel. ... Note that the swap space is still not in use yet: it exists, but the kernel does not use it to provide virtual memory. ...

... This is the MS-DOS general help file. ... Type FASTHELP with no arguments to display the text in this file. ... APPEND Allows programs to open data files in specified directories as if they were in the current directory. ... COPY Copies one or more files to another location. ... FC Compares two files or sets of files, and displays the differences between them. ... PATH Displays or sets a search path for executable files. ... SYS Copies MS-DOS system files and command interpreter to a disk you...

... When creating a mosaic from a set of individual frames, the correct background offset for each frame must be determined for proper matching. In this paper we describe a method for constructing a mosaic from a set of individual frames by applying a minimization technique. ... Typically these are frames with some known defect (see ? ... Determining which frames to exclude from the final mosaic is critical, since one bad frame can create background offset errors that propagate throughout the mosaic. ...

The cool thing about shared memory segments is that they are what they sound like: a segment of memory that is shared between processes. ... See, you just connect to the shared memory segment, and get a pointer to the memory. ... Before you can use a shared memory segment, you have to attach yourself to it using the shmat() call: . ... Here's a more complete example of how to get a pointer to a shared memory segment: . ... You have the pointer to the shared memory segment! ... shmat() . ...