查询us_surnames.csv文件的行数

root@li384-34:/data/usa_names# wc -l usa_names.csv

1058827 usa_names.csv

PS：该文件的总行数为1058827。

wc命令的其它参数：

root@li384-34:/data/usa_names# wc --help

Usage: wc [OPTION]... [FILE]...

  or:  wc [OPTION]... --files0-from=F

Print newline, word, and byte counts for each FILE, and a total line if

more than one FILE is specified.  With no FILE, or when FILE is -,

read standard input.

  -c, --bytes            print the byte counts

  -m, --chars            print the character counts

  -l, --lines            print the newline counts

      --files0-from=F    read input from the files specified by

                           NUL-terminated names in file F;

                           If F is - then read names from standard input

  -L, --max-line-length  print the length of the longest line

  -w, --words            print the word counts

      --help     display this help and exit

      --version  output version information and exit

Report wc bugs to bug-coreutils@gnu.org

GNU coreutils home page: <http://www.gnu.org/software/coreutils/>

General help using GNU software: <http://www.gnu.org/gethelp/>

Report wc translation bugs to <http://translationproject.org/team/>