Next: The root filesystem Up: Overview of the Directory Previous: Overview of the Directory . This chapter is loosely based on the Linux filesystem standard, FSSTND, version 1.2 (see the bibliography, [ Qui95 ]), which attempts to set a standard for how the directory tree in a Linux system is organized. ... This chapter does not explain all files in detail. ... The major parts are the root, /usr љ , /var љ , and /home љ filesystems (see figure 2.1 ). ... Figure 2.1: Parts of a Unix directory tree. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

Next Previous Contents . ... There are filesystems on disk partitions and other devices, and there is the filesystem as it is presented to you by a running Linux system. In Linux, you ``mount'' a disk filesystem onto the system's filesystem. ... A filesystem imposes some structure on this, and makes it look like files within directories within directories.. ... If the power cuts out at this point, the filesystem will be broken. ... Usually, the kernel mounts its root file system read-only. ...

... Several of the tasks in the spectral package share a common set of parameters. ... Each task in the spectral package has a hidden parameter which points to the pkgpars parameter file. The parameters stored here include the observed data sets and the model descriptor, and instrument-specific parameters. ... The observed counts and error data set contained in the table file ( *_obs.tab ) produced by qpspec will be the input data for subsequent spectral tasks. ...

... Forum: A tour of the Linux VFS . ... Inodes represent entities on disks: there's one (and only one) for each file, directory, symlink, device and FIFO on the filesystem. When a user process does an open() syscall, it does a couple of things: - it looks up the inode for the pathname - it puts the inode into the inode cache - it allocates a new file structure - it allocates a filedescriptor slot, and points it it at the file structure The number of the file descriptor slot is what is returned. ...

... Look at this example: pwd (print the user's working directory ) /home/tom/reports ls ../tmp/ drafts (list the contents of this directory ) expenditure targets ln -s $HOME/tmp/ drafts quarterly (use a symbolic link to make the directory ) cd quarterly (change directory to this linkname ) ln $HOME/accounts/ expenses (link a file to this linkname ) ls (list the contents of the linked directory ) (the linked file is listed) ...

This document explains how Apache uses the URL of a request to determine the filesystem location from which to serve a file. ... User Directories . URL Redirection . ... the URL http://www.example.com/docs/dir/file.html will be served from /var/web/dir/file.html . ... The module mod_userdir extends this idea to the web by allowing files under each user's home directory to be accessed using URLs such as the following. http://www.example.com/~user/file.html . ...

... DevHlp_Security This devhlp allows to open a file for read access in the Init routine of a BASEDEV . ... returned: size of file SYIOpenFile ends Valid at INIT time only. ... This routine uses the corresponding function of the miniFSD , not normal file I/O, thus access is restricted. ... Although the size argument of the data structure implies, I'd recommend to better not read more than 32K at a time. ... DL = 044h This function will return the table of security helper functions for file access. ...

... The system is general, due to some simple naming conventions for database tables. ... Furthermore, the interface allows X-Y plotting of any two numerical quantities retrieved from the database, and access to data archives distributed over Internet, following the WWW concept. ... The user interface allows access to the underlying structure of the archive: a catalogue managed by a commercial SQL-based database management system, and a data bank holding the original data and compressed quick-look data....

... FileљStructure . ... After downloading all the catalogues, the paths to the various files should look like this: Installation Data Directory / stars / default / stars _0_0v0_1.cat Installation Data Directory / stars / default / stars _1_0v0_1.cat Installation Data Directory / stars / default / stars _2_0v0_1.cat Installation Data Directory / stars / ... In this case, all the files would be in the <Installation Data Directory>/stars/default directory. ...

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

... The observed distributions of stars of different ages and metallisities in the Z coordinate relative to Sun: (a) young ( t 3 Gyr) metall-rich ( [Fe/H] -0.13 ) stars; (b) young metal-poor ( [Fe/H]<-0.13 ) stars; (c) old ( 3 Gyr) metal-rich stars, and (d) old metal-poor stars. ... next figure | previous figure . ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

obsreq *.edb *.sch pc39.o gpsd wxd telescoped domed camerad telsched telrun (tty) apogee.o xephem xobservatory camera telrun.sls Batch Real­time shm OCAAS Data Flow driver process GUI file fifo shared­mem I/O telsched.cfg camera.cfg domed.cfg focus.cfg filter.cfg wxd.cfg telescoped.cfg Introduction OCAAS 2.0 November 12, 1998 1­7 1.4 Basic Software Architecture OCAAS design takes full advantage of the UNIX architecture. ... The special file to access the driver is $TELHOME/dev/pc39. ...

Microsymposium 38, MS083, 2003 (A4 format) MERCURY: LOCAL VARIATIONS OF THE PHOTOMETRIC RELIEF. ... Because of trajectory and pointing angle constraints the planet could be observed from Mariner 10 only over a small range of phase angles between about 75o and 110o. Therefore the photometric investigations are restricted to measuring the distribution of brightness on the Mercurian disk. ... Raw versions of real-time processing pictures FDS 0000984 and FDS 0000986 were used (images 196 and 202). ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The S un Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic ... Low mass stars live and die differently than high mass stars. ...

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...