All the programs in Gnuastro are customized through the standard GNU style command-line options. Thus, we’ll start by defining this general style that is very common in many command-line tools on Unix-like operating systems. Finally, the options that are common to all the programs in Gnuastro are discussed.
The command-line text that you type is passed onto the shell (or program
managing the command-line) as a string of characters. See the “Invoking
ProgramName” sections in this manual for some examples of commands with
each program, for example Invoking Table. That string is then
broken up into separate tokens or words by any
metacharacters (like space, tab,
;) that might exist in the text. To learn more, please see the
GNU Bash manual, for the complete list of meta-characters and other GNU
Bash definitions (GNU Bash is the most common shell program). Its “Shell
Operation” section has a short summary of the steps the shell takes before
passing the commands to the program you called.
|• Arguments and options:||Basics of options and arguments.|
|• Common options:||Common options to all Gnuastro programs.|