Translations by Eric_Quan

Modify or display completion options. Modify the completion options for each NAME, or, if no NAMEs are supplied, the completion currently begin executed. If no OPTIONs are givenm, print the completion options for each NAME or the current completion specification. Options: -o option Set completion option OPTION for each NAME -D Change options for the "default" command completion -E Change options for the "empty" command completion Using `+o' instead of `-o' turns off the specified option. Arguments: Each NAME refers to a command for which a completion specification must have previously been defined using the `complete' builtin. If no NAMEs are supplied, compopt must be called by a function currently generating completions, and the options for that currently-executing completion generator are modified. Exit Status: Returns success unless an invalid option is supplied or NAME does not have a completion specification defined.

Define shell function. Create a shell function named NAME. When invoked as a simple command, NAME runs COMMANDs in the calling shell's context. When NAME is invoked, the arguments are passed to the function as $1...$n, and the function's name is in $FUNCNAME. Exit Status: Returns success unless NAME is readonly.

Display possible completions depending on the options. Intended to be used from within a shell function generating possible completions. If the optional WORD argument is supplied, matches against WORD are generated. Exit Status: Returns success unless an invalid option is supplied or an error occurs.

Read lines from a file into an array variable. A synonym for `mapfile'.