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authorJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
committerJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
commitfa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch)
treebdda434976bc09c864f2e4fa6f16ba1952b1e555 /pkg/system/doc/news.hlp
downloadiraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz
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+.help news Mar90 system
+.ih
+NAME
+news -- print the revisions summary for the current IRAF version
+.ih
+USAGE
+news
+.ih
+DESCRIPTION
+The \fInews\fR task uses the standard IRAF file pager to review a formatted
+summary of the system revisions for the version of IRAF being run.
+The revisions summaries for older versions of the system are also provided:
+use the \fIN\fR and \fIP\fR pager keys to display the next or previous
+system revisions summary. The revisions summary is given in the file
+"doc$newsfile".
+
+For reasons of brevity, only the revisions summary is printed. For detailed
+information on the revisions made to a particular science package, type
+
+ cl> help <pkg>.revisions op=sys
+
+where "pkg" is the name of the CL package for which revisions information
+is desired. For detailed information on the revisions to the system
+software and programming interfaces, examine the system notes file,
+given in the file "notes.*" in the directory "iraf$local". The system
+notes files for older versions of the system will be found in the "doc"
+directory.
+.ih
+BUGS
+The revisions summary is often lengthy and may be easier to read if a
+printed copy is made.
+
+Redirecting the output of \fInews\fR, e.g., to \fIlprint\fR, doesn't work
+at present.
+.ih
+EXAMPLES
+1. Page the revisions summary for the current IRAF release.
+
+ cl> news
+
+2. Print the revisions summary.
+
+ cl> lprint doc$newsfile
+
+3. Page the system notes file. Anyone who develops software for IRAF
+should review this file with each new release, to see what has changed.
+Documentation for new system facilities is often given in the system
+notesfile.
+
+ cl> page iraf$local/notes.*
+
+4. Review the revisions summary for the IMAGES package.
+
+ cl> phelp images.revisions op=sys
+.ih
+SEE ALSO
+help, phelp, page
+.endhelp