1dtfits(1) General Commands Manual dtfits(1)
2
3
4
6 dtfits - display FITS table
7
9 dtfits <table>
10
12 dtfits dumps the contents of a FITS table in an ASCII format, either
13 into a user-specified file or on stdout. The output is formatted on a
14 fixed number of columns to make it readable by human beings. Additional
15 informations are printed out before the table values are dumped, these
16 informations can be skipped by using the -d option.
17
18 Last, if you want to dump the table into an easily parsable format (for
19 a piece of software), you might want to use the -s option which speci‐
20 fies a character to use as separator. All data fields will be printed
21 out separated by this character only. This allows to use string parsers
22 to cut down the output lines into tokens by looking for this separator.
23 Fields (lines) will still be delimited by the end-of-line character.
24 This option produces ASCII tables which are easy to parse for a piece
25 of software but mostly unreadable to human beings.
26
27 Notice that dtfits only accepts one single FITS table in input.
28
30 -d Skip information output about the table and column names. Out‐
31 puts only the table values. Beware that if the FITS file con‐
32 tains several extensions, they will all appear one after
33 another, separated only by two blank lines. In that case, it
34 would be preferrable to keep the complete output and parse out
35 the returned stream to differentiate which data come from where.
36
37 -s <char>
38 Use the character <char> as separator in output. This option is
39 useful if you want to produce a table that should be parsed by a
40 piece of software (see above description). The separator can
41 only be a single non-null character. To avoid special characters
42 being interpreted by the shell, it is recommended to provide
43 this character always between simple or double quotes. Example:
44 dtfits -s '&' table.tfits
45
46 If you want to use a special character as separator, such as a tab, use
47 ^V to insert your character, such as:
48 dtfits -s '^V<TAB>' table.tfits
49
50 which means: you type CTRL-V and then the tab key.
51
53 dfits
54
56 FITS tables are stored into extensions. If there are several tables in
57 a file, they will all be displayed one after another in the same output
58 stream.
59
60
61
62 22 Dec 1999 dtfits(1)