There is a shorthand way of setting permissions by using octal numbers. Read permission is given the value 4, write permission the value 2 and execute permission 1. r w x 4 2 1 . ... So access permissions can be expressed as three digits. For example: user group others chmod 640 file1 rw- r-- --- chmod 754 file1 rwx r-x r-- chmod 664 file1 rw- rw- r-- . ...

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• UNIXhelp Glossary - "A"
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• Examples of reading mail

... Abstract Append a new, empty record at the end of a specified E-kernel segment. ... Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- handle I File handle. segno I Segment number. recno O Number of appended record. ... After a new record has been appended to a segment by this routine, the record must be populated with data using the ekace*_c routines. ... To insert a record into a segment at a specified ordinal position, use the routine ekappr_c . ...

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• CSPICE Routines: EKRCEC_C
• Python: module fileinput
• CSPICE Routines: EKINSR_C

Next: Reading and Writing Continuum Up: UV Data Sets Previous: Open, Close and Rewind . The routines uvread and uvwrite are routines used to read and write the correlation data (and the associated flagging information). Here preamble is an array of four double precision elements, data is an array of n complex elements, whereas flags is an array of n logical values. ... Using uvflgwr when reading a visibility file, is the method used to develop flagging tasks. ...

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• casacore: casa::MMapfdIO Class Reference
• Reading and Writing Blanking Information
• casacore: casa::ImageMetaData Class Reference

... omdetect (omdetect-5.14.2) [?? Meta Index / Home Page / Source Flagging Algorithms Since the object producing a read-out streak may lie outside the image, another algorithm is also used by omdetect. ... nMin = int( 0.6 (ny + 1)) where ny is the number of rows in the image (image height) . ... Loop through all the columns of the image . ... n4 = count(image(i0, :) image(i0 + 1, :) ) Count the number of pixels along column i0 that have a greater value than their neighbour in column i0 + 1 . ...

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• Procedure
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... Behemoth black hole found in an unlikely place . ... black holes . ... Observing springtime deep-sky objects with a large telescope . ... Could large numbers of black holes account for much of the "dark matter" estimated to exist in our universe? ... NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) No, because the universe never had the raw material to grow enough black holes to account for current estimates of dark matter. Get instant access to subscriber content on Astronomy.com! ...

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• The right number of images | Astronomy.com
• Carry around the universe's top numbers | Astronomy.com

... LWN.net FAQ . ... Write for LWN . ... This article is part of the LWN Porting Drivers to 2.6 series . ... void write_seqlock( seqlock_t *sl); void write_sequnlock( seqlock_t *sl); int write_tryseqlock( seqlock_t *sl); void write_seqlock_irqsave( seqlock_t *sl, long flags); void write_sequnlock_irqrestore( seqlock_t *sl, long flags); void write_seqlock_irq( seqlock_t *sl); void write_sequnlock_irq( seqlock_t *sl); void write_seqlock_bh( seqlock_t *sl); void write_sequnlock_bh...

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• Linux I/O port programming mini-HOWTO: Using I/O ports in C programs
• Writing programs that use comedi and comedilib
• Integer Functions, Random Number, String Conversion, Searching and Sorting:

Next: PointData manipulation Up: Accessing data files Previous: Loading tables Contents . Note that there are some procedures which package several tasks, e.g., get_pointdata includes loading of the configuration, scantable, etc., and the loading of point data for all scans. get_records Read raw data from HDS file. ... Note that configuration and table data must have been read prior to this call! get_rawdata ,[ file _char ] Compound procedure. ... Read scan data and auxilliary data from .cha file. ...

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• Reading raw HDS scan files
• Loading tables
• NPOI Lab

Next: Writing FITS Up: Conversion between FITS Previous: File naming . The INTAPE -command is used to convert FITS (or IHAP) files to the internal MIDAS format: INTAPE file_list id device [flag] . where file_list is a list of absolute position numbers of files (if input is from tape) to be read with 1 being the first file ( e.g. 1, 3, 5, 50-60 would read from the 1st, 3rd, 5th file plus files 50 through 60 included), and id is an identification prefix of the names of the files created. ...

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• Writing FITS
• Entry points
• Command Recalling

... Instead of putting code in each application you write to control each device, you share the code between applications. ... Within the kernel, there are a set of functions, registered with the filesystem, which are called to handle requests to do I/O on ``device special files,'' which are those which represent devices. ... This chapter explains how to write any type of Linux device driver that you might need to, including character, block, SCSI, and network drivers. ...

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• Character Device Drivers
• Electronics
• Block Device Drivers

... It adds together the first two of these numbers. If the result is greater than the # third number, it prints all three numbers out (to a file called results.d) # Otherwise it prints out a rude message # First , open the files inhandle = open ('data.d', 'r') outhandle = open ('results.d', 'w') # Now loop through all the lines in the input. for line in inhandle: allarray = line .split() # Split the line you've just read in into its component bits n1 = float ( ...

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• Mach-numbers in a simulation of convection in the sub-giant Eta Boo
• Signal-to-Noise Ratio
• Observational Techniques Home Page

PROGRAM SUMMATION ! Summation forwards and backwards of 1/n^2 IMPLICIT NONE INTEGER :: N, NMAX CHARACTER :: ANSWER REAL :: SUM_SP, TEMP DOUBLE PRECISION :: SUM_DP INTEGER, PARAMETER :: QUAD = SELECTED_REAL_KIND(20,1000) REAL(KIND=QUAD) :: SUM_QUAD SUM_SP = 0.0 SUM_DP = 0.0D0 SUM_QUAD = 0.0_QUAD 1 WRITE(*,'(A)', ADVANCE='NO') 'How many numbers do you wish to add? ... 10) THEN WRITE(*,*) 'Too few numbers!' GO TO 1 ELSE IF (NMAX .GT. 100000000) THEN WRITE(*,*) 'Too many numbers!' ...

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• Summary of Fortran 77 statements
• Songs, HTML'd by Daniel Turner
• Naughty Number Nine

... Class . ... ImageJ Plugin for reading an AVI file into an image stack (one slice per video frame) Version 2008-07-03 by Michael Schmid, based on a plugin by Daniel Marsh and Wayne Rasband Restrictions and Notes: - Only few formats supported: - uncompressed 8 bit with palette (=LUT) - uncompressed 8 16 bit grayscale - uncompressed 24 32 bit RGB (alpha channel ignored) - uncompressed 32 bit AYUV (alpha channel ignored) - various YUV 4:2:2 compressed formats - png or jpeg-encoded individual frames. ...

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• PGM_Reader (ImageJ API)
• ij.io (ImageJ API)
• BitBuffer (ImageJ API)

... File format . ... The p12mProg is the AO control program for the 12 meter telescope. ... the time from the tick, till when we complete the status read from the device. ... P12M_STAT_BLK struct (read from controller via group read at tick) . ... azimuth master 32bit status word . ... dbl . ... azimuth error read from controller. ... azimuth velocity read back from controller deg/sec . ... elevation position read back from controller. stBlk.elErr_D . ... elevation velocity read back from controller . ...

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• pulsars
• pdev_software
• site power idl routines

The starting page - The catalogues page - The list of the PUL2 fields - The list of the Pul-3(Pul-3SE) fields - The list of the PUL_ERS fields . please read short description of the access form controls . ... Right Ascension (ICRF/Tycho-2) J2000 at the central epoch of obs. (hours, minutes, seconds) (Obligatory parameter) . ... proper motion in RA (*cos(DE)) (ICRF/Tycho-2). (mas/yr) . ... Check the apropriate checkbox to output these data and radiobutton to select stars within interval. ...

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• The Pul_ERS astrometric catalogue. Data access form
• Proper motions of 59766 stars with respect to galaxies in 149 areas of the sky

... Fields: Each document is assigned a unique inventory code. Definitions reflect information commonly found on a document, i.e. title, number, vendor, dates, etc. Please read Fields for detailed definitions. ... details and history of the document.html locator . ... Links: An HTML locator is created when the document is coded. ... Document Files: Each inventory code is a separate document. ... Using the HTML locator links the user to the document. Database Home page | APO Home Page | ...

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• field
• Procedure for Part Numbering Convention: Larry Carey, 2005
• TUI:TUI Menu:Preferences Window

... This relieves the rest of the computer from knowing how to use the drive, since the controllers for different types of disks can be made to use the same interface towards the rest of the computer. ... Usually the number of sectors is the same for all tracks, but some hard disks put more sectors in outer tracks (all sectors are of the same physical size, so more of them fit in the longer outer tracks). ... For example, a hard disk might have 8 heads, 2048 tracks, and 35 sectors per track . ...

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• IAJ: Contents - Volume 26 Number 2
• Measuring Internet Access
• Numbers and distances

... Annual Meeting . ... Other Workshops, Conferences and Events . ... Galileo Teacher Training Program Workshop . ... Submit an abstract (please read guidelines below first). ... Please fill out the abstract form carefully since the program committee will be rating the proposals based only on the information you provide. ... For the conference, you may be the lead author on one poster paper, and one oral session: a ten-minute oral paper presentation or an hour-long workshop or a special interest group....

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• ASP: Family ASTRO: Resource Lists and Background Reading
• ASP's 2011 Annual Meeting
• ASP Member Change of Address, Phone Number, and Email Address

Astronomy Discussion Forums . ... A Number Is A Very Specific Thing . ... Post Message | ... Posted by Harvey on October 9, 2002 16:41:15 UTC . ... When you use the word 'number', you are introducing a specific kind of symbol that is known within the context of mathematics. ... You know what - harvey1 - October 9, 2002 - 20:53 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Nothing? Beyond Numbers... - an Astronomy Net God Science Forum Message
• Back To Basics - an Astronomy Net Exploration Forum Message
• How Do You Feel About Numbers? - an Astronomy Net Exploration Forum Message

grdreformat - Converting between different grdfile formats. grdreformat ingrdfile [= id [/ scale / offset [/ nanvalue ]]] outgrdfile [= id [/ scale / offset [/ nanvalue ]]] [ -R west / east / south / north [ r ] ] [ -V ] grdreformat reads a grdfile in one format and writes it out using another format. As an option the user may select a subset of the data to be written and to specify scaling, translation, and nan-value. ingrdfile The grdfile to be read. ...

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• http://xray.sai.msu.ru/~ivan/gmt/man/spectrum1d.html
• http://xray.sai.msu.ru/~ivan/gmt/man/gmtconvert.html
• http://xray.sai.msu.ru/~ivan/gmt/man/grdtrend.html

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• Intelligent Life in the Universe
• QSO Absorption Lines and Other Cosmological Probes
• Data, data, data