The perl -n command runs the program once on every line of the input file.

perl -n 命令针对输入文件的每一行运行一次程序。

youdao

You can also number lines with the -n option of the cat command.

也可以使用cat命令的- n选项对行进行编号。

youdao

This assumes that the command uname -n displays ha1.haw2.ibm.com; yours may well produce ha1, and if it does, use that instead.

这假定 uname -n 命令会显示 ha1.haw2.ibm.com；您的配置中可能只显示 ha1， 如果是那样的话，请使用 ha1。

youdao

U.N. peacekeepers are scheduled to take command of the region from a 7, 000-member African Union force by Dec. 31, but the bulk of the units are not expected to arrive until 2008.

NPR: U.N., African Union Unite to End Darfur Violence