制表键

bashshell使用制表键表示命令结束，因此当我们需要一个真正的制表符时，使用一个专用tab字符将非常方便。

The bash shell uses the tab key for command completion , so it can be handy to have a captive tab character that you can use when you want a real tab .

第一个规则表达式将与后面依次跟有任意数量的空格或制表键以及开始圆括号的字符串“main”匹配。

The first regular expression will match the string " main " followed by any number of spaces or tabs , followed by an open parenthesis .

按照诊断检测仪的说明，用制表键输入总里程数，检查后按f8键。

Observe the instructions of the diagnosis tester , enter the total mileage with the tabulator key , check and then press the f8 .

打字机使用小小的金属制表键，在有多处空格时快速跳转直至达到特定的栏。

Typewriters used little metal tabs to slew the carriage rapidly over several spaces until it came to rest on a particular column .

请记住：当环境变量没有用空白（空格或制表键）与周围文本分开时，请使用更明确的花括号形式。

You 'll want to remember to use the more explicit curly-brace form when your environment variable is not isolated from the surrounding text by whitespace ( spaces or tabs ) .