Linux基本命令入门

来源：互联网发布：eclipse java界面设计编辑：程序博客网时间：2024/06/05 04:39

bc：计算器。

bc 1.06.95Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.This is free software with ABSOLUTELY NO WARRANTY.For details type `warranty'.1+122-112*242/211/20

注意“scale=n”

scale=32/3.666

cal：万年历功能。

[root@wangxinshuo ~]# cal      July 2017Su Mo Tu We Th Fr Sa                   1 2  3  4  5  6  7  8 9 10 11 12 13 14 1516 17 18 19 20 21 2223 24 25 26 27 28 2930 31

[root@wangxinshuo ~]# cal 2017                               2017       January               February                 MarchSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa 1  2  3  4  5  6  7             1  2  3  4             1  2  3  4 8  9 10 11 12 13 14    5  6  7  8  9 10 11    5  6  7  8  9 10 1115 16 17 18 19 20 21   12 13 14 15 16 17 18   12 13 14 15 16 17 1822 23 24 25 26 27 28   19 20 21 22 23 24 25   19 20 21 22 23 24 2529 30 31               26 27 28               26 27 28 29 30 31        April                   May                   JuneSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa                   1       1  2  3  4  5  6                1  2  3 2  3  4  5  6  7  8    7  8  9 10 11 12 13    4  5  6  7  8  9 10 9 10 11 12 13 14 15   14 15 16 17 18 19 20   11 12 13 14 15 16 1716 17 18 19 20 21 22   21 22 23 24 25 26 27   18 19 20 21 22 23 2423 24 25 26 27 28 29   28 29 30 31            25 26 27 28 29 3030        July                  August                SeptemberSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa                   1          1  2  3  4  5                   1  2 2  3  4  5  6  7  8    6  7  8  9 10 11 12    3  4  5  6  7  8  9 9 10 11 12 13 14 15   13 14 15 16 17 18 19   10 11 12 13 14 15 1616 17 18 19 20 21 22   20 21 22 23 24 25 26   17 18 19 20 21 22 2323 24 25 26 27 28 29   27 28 29 30 31         24 25 26 27 28 29 3030 31       October               November               DecemberSu Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa 1  2  3  4  5  6  7             1  2  3  4                   1  2 8  9 10 11 12 13 14    5  6  7  8  9 10 11    3  4  5  6  7  8  915 16 17 18 19 20 21   12 13 14 15 16 17 18   10 11 12 13 14 15 1622 23 24 25 26 27 28   19 20 21 22 23 24 25   17 18 19 20 21 22 2329 30 31               26 27 28 29 30         24 25 26 27 28 29 30                                              31

[root@wangxinshuo ~]# cal 8 2017     August 2017Su Mo Tu We Th Fr Sa       1  2  3  4  5 6  7  8  9 10 11 1213 14 15 16 17 18 1920 21 22 23 24 25 2627 28 29 30 31

date：日期与时间功能。

[root@wangxinshuo ~]# dateSat Jul  8 16:57:28 CST 2017

[root@wangxinshuo ~]# date +%Y/%m/%d2017/07/08

[root@wangxinshuo ~]# date +%H:%m17:07

值得注意的是，“h”和”H”的大小写结果会不一样：

[root@wangxinshuo ~]# date +%h:%mJul:07

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