linux系统内置命令可以通过以下两种方式查询:“cat --help” 或者“man cat”。
cat命令的常用选项和官方解释如下:
cat file_name 显示文件全部内容
cat -b file_name 显示文件非空行内容
cat -E file_name 在文件每行末尾显示$,常用于管道功能
cat -n file_name 显示内容和行号
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> Usage: head [OPTION]... [FILE]... Print the first 10 lines of each FILE to standard output. With more than> Usage: tail [OPTION]... [FILE]... Print the last 10 lines of each FILE to standard output. With more than>总结到此这篇关于Linux文本查看命令及其选项详解(cat,head,tail)的文章就介绍到这了,更多相关Linux文本查看命令及其选项内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们!
Linux文本查看命令及其选项详解(cat,head,tail)
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