如何突出顯示文本文件中的單詞

我想使用cat突出顯示文本的特定部分。這怎麼可能？答案是cat 文件名 | grep word 感謝您的幫助

答案是，或者應該是：不可能。

Usage: cat [OPTION]... [FILE]...
Concatenate FILE(s) to standard output.

With no FILE, or when FILE is -, read standard input.

 -A, --show-all           equivalent to -vET
 -b, --number-nonblank    number nonempty output lines, overrides -n
 -e                       equivalent to -vE
 -E, --show-ends          display $ at end of each line
 -n, --number             number all output lines
 -s, --squeeze-blank      suppress repeated empty output lines
 -t                       equivalent to -vT
 -T, --show-tabs          display TAB characters as ^I
 -u                       (ignored)
 -v, --show-nonprinting   use ^ and M- notation, except for LFD and TAB
     --help     display this help and exit
     --version  output version information and exit

Examples:
 cat f - g  Output f's contents, then standard input, then g's contents.
 cat        Copy standard input to standard output.

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Full documentation at: <http://www.gnu.org/software/coreutils/cat>

cat 的“核心”功能是連接 - 字面意思。換句話說 - 任何不連接 - 或連結（事物）在一起的東西- 都應該被認為是多餘的

引用自：https://unix.stackexchange.com/questions/325475