Why are broken characters displayed?

Characters are not Displaying Correctly

Non ASCII characters may be displayed incorrectly as shown in the abnormal status below:

Abnormal status:

Normal status:

This is caused by differences between language settings. 

System $LANG Environment Variable.

To fix this issue, run a command to confirm what language and which encoding of that language is being utilized by your terminal.

test@uby:~$ echo $LANG
ko_KR.UTF-8
test@uby:~$

The output above indicates that the terminal is displaying information in the Korean format and the encoding of Korean characters is UTF-8.
Broken characters are due to a encoding difference with the terminal emulator.

The Encoding of Xshell

A session's encoding can be designated in the session's properties. Or you can use the encoding button in the standard toolbar to quickly change it.

Match the Encoding Between the Terminal and Xshell

The encoding of Unix and Linux is either UTF-8 or Non-UTF-8.

UTF-8 is common to all languages and utf8 and UTF-8 are the same. One is the alias of the other.

Non-UTF-8 encoding is somewhat different. If your system uses Non UTF-8 such as EUC(Extend Unix Codes), ISO8859 series, or various Chinese encodings like BIG5, GB, etc., first set the encoding of Xshell to Default Language and try switching between the other encodings in the "More" area of the encoding button.

You may need to go through several encodings to find the one that will work correctly.