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1·For instance, if your terminal (or emulator) is capable, you can colorize the output of ls (list directory contents) with the environment variables CLICOLOR and LSCOLORS.

例如，如果您的终端(或模拟器)允许，那么您可以使用环境变量CLICOLOR和lscolors为ls(列出目录的内容)的输出定制颜色。

2·The ps commands discussed so far only list processes that were started from your terminal session (note the SID, or session id, column in the second example of Listing 14).

到目前为止所讨论的ps命令仅列出从终端会话启动的进程(注意清单14中的第二个例子的sid列，即会话id列)。