1.19 find、grep

1.19.1 find

在目录中搜索文件，使用find命令

$find . -name 'chess.\*'
./chess.c

1.19.2 grep

在指定文件中搜索特定内容，并将含有这些内容的行输出到标准输出。若不指定文件名，则从标准输入读取。

$grep 'printf' ./ -R
./chess.c:30:        printf("\n  ");

./chess.c:32:                printf(" %d", i + 1);

./chess.c:33:        printf("\n");

./chess.c:35:                printf(" -");

./chess.c:36:        printf("\n");

./chess.c:39:                printf("%d ", i + 1);

./chess.c:42:                        printf(" %d", chessboard[i][j]);

./chess.c:44:                printf("\n");

./chess.c:115:        printf("current: p1: %d, p2: %d.\n", p1, p2);

./chess.c:126:        printf("Welcome!\n");

./chess.c:127:        printf("Input link this, 3 3\n");

./chess.c:131:                printf("Player %d: ", who);

./chess.c:140:                                printf("Board full!\n");

./chess.c:143:                        printf("Current step: %d\n", step);

./chess.c:146:                        printf("out of range or place 

occupied!\n"