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ASTSCRIPT-SORT-BY-NIGHT(1) User Commands ASTSCRIPT-SORT-BY-NIGHT(1) NAME astscript-sort-by-night - Sort input FITS files by night SYNOPSIS astscript-sort-by-night [OPTION] FITS-files DESCRIPTION This script is part of GNU Astronomy Utilities 0.24. This script will look into a HDU/extension for a header keyword in the given FITS files and interpret the value as a date. The inputs will be sep- arated by "night"s. The definition a "nights" is set with the '--hour' op- tion (just note that the FITS time may be recorded in UTC, not local time)! It will then print a list of all the input files along with the following two columns: night number and file number in that night (sorted by time). With '--link' a symbolic link (one for each input) will be made with names including the night classifier. With '--copy' instead of a link, a copy of the inputs will be made. For more information, please run any of the following commands. In particu- lar the first contains a very comprehensive explanation of this script's invocation: expected input(s), output(s), and a full description of all the options. Inputs/Outputs and options: $ info astscript-sort-by-night Full Gnuastro manual/book: $ info gnuastro If you couldn't find your answer in the manual, you can get direct help from experienced Gnuastro users and developers. For more information, please run: $ info help-gnuastro astscript-sort-by-night options: Input: -h, --hdu=STR HDU/extension of all input FITS files. -k, --key=STR Header keyword specifying date to use. -H, --hour=FLT Hour in next day to be included in night. Be aware of time zones with this argument! Output: -l, --link list of inputs with night and file number. -c, --copy Copy the files, don't make symbolic links. -p, --prefix=STR Prefix for outputs of '--copy' and '--link'. Operating mode: -?, --help Print this help list. --cite BibTeX citation for this program. -q, --quiet Don't print any extra information in stdout. -V, --version Print program version. --stdintimeout Micro-seconds to wait for standard input (used for operations within this script). Mandatory or optional arguments to long options are also mandatory or op- tional for any corresponding short options. GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/ REPORTING BUGS Report bugs to bug-gnuastro@gnu.org. COPYRIGHT Copyright (C) 2015-2025 Free Software Foundation, Inc. License GPLv3+: GNU General public license version 3 or later. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written/developed by Mohammad Akhlaghi SEE ALSO The full documentation for astscript-sort-by-night is maintained as a Tex- info manual. If the info and astscript-sort-by-night programs are properly installed at your site, the command info astscript-sort-by-night should give you access to the complete manual. GNU Astronomy Utilities 0.24 November 2025 ASTSCRIPT-SORT-BY-NIGHT(1)
NAME | SYNOPSIS | DESCRIPTION | REPORTING BUGS | COPYRIGHT | SEE ALSO
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