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Add text about getting help. (#29941) 

Add "(see below)" and text about how to getting help using the linux commands.
pull/32780/head^2
frbc 2018-12-10 15:03:06 -02:00 committed by Tom
parent 13f090dc89
commit fbc399d35c
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guide/english/linux/10-simple-and-useful-linux-commands/index.md
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@ -65,3 +65,10 @@ ifconfig allows you to see the addresses associated with each TCP/IP interface o
12. `systemctl`
This is a command which allows operators to work with the Linux system services. The standard use of the command is `systemctl <OPTION> <SERVICE-NAME>` by providing an `OPTION` (e.g. `start`, `stop`, `status`) and than providing a specific Service Name to act on. You can use the command to get a general status of your Linux services (e.g `systemctl status`). Note that you will either need Administrator access or use `sudo` to elevate your rights to run the command successfully.
### How to get help about the commands:
More info can be viewed about how to use each of the commands listed above right in the terminal in the following ways:
1. Using `man` to access the manual pages. It takes as argument another command name and returns a complete tutorial about the argument, including main options of use, syntax details and another related commands. You can search a text accross all man pages database.
Example: `man cd`
2. Using the `--help` flag to see quick options to use in command line.
Example: `cd --help`