什么是notify-send?
notify-send - a program to send desktop notifications
怎么使用？
NAME
notify-send - a program to send desktop notifications
SYNOPSIS
notify-send [OPTIONS] <summary> [body]
DESCRIPTION
With notify-send you can sends desktop notifications to the user via a notification daemon
from the command line. These notifications can be used to inform the user about an event
or display some form of information without getting in the user's way.
OPTIONS
-u, --urgency=LEVEL Specifies the urgency level (low, normal, critical).
-t, --expire-time=TIME
The duration, in milliseconds, for the notification to appear on screen. (Ubuntu's
Notify OSD and GNOME Shell both ignore this parameter.)
-i, --icon=ICON[,ICON...]
Specifies an icon filename or stock icon to display.
-c, --category=TYPE[,TYPE...]
Specifies the notification category.
Help options:
-?, --help
Show this help message
-h, --hint=TYPE:NAME:VALUE
Specifies basic extra data to pass. Valid types are int, double, string and byte.
SEE ALSO
The Desktop Notification Spec on http://www.galago-project.org/specs/notification/.
AUTHOR
This manual page was written by Andre Filipe de Assuncao e Brito <[email protected]> and Paul van Tilburg <[email protected]> and Riccardo Setti <[email protected]> for the Debian project (but may be used by others).
在 gnome-shell 中 使用 notify-send --help 命令来进行显示使用说明：
➜ Downloads notify-send --help Usage: notify-send [OPTION?] <SUMMARY> [BODY] - create a notification Help Options: -?, --help Show help options Application Options: -u, --urgency=LEVEL Specifies the urgency level (low, normal, critical). -t, --expire-time=TIME Specifies the timeout in milliseconds at which to expire the notification. -a, --app-name=APP_NAME Specifies the app name for the icon -i, --icon=ICON[,ICON...] Specifies an icon filename or stock icon to display. -c, --category=TYPE[,TYPE...] Specifies the notification category. -h, --hint=TYPE:NAME:VALUE Specifies basic extra data to pass. Valid types are int, double, string and byte. -v, --version Version of the package.
之后我们将结合crontab等命令, 来进行定时发送消息，进行桌面和邮件通知。