linux 中使用ls指定输出时间格式
原文：http://blog.csdn.net/chaofanwei/article/details/13018753
ls -l --time-style=xxx
xxx:full-iso, long-iso, iso, locale, +FORMAT
默认输出是:locale格式
例一：ls -l --time-style=full-iso
[wei@localhost ~]$ ls -l --time-style=full-iso
总计 24
drwxr-xr-x 2 boco boco 4096 2013-10-16 14:49:57.000000000 +0800 Deskt
drwxrwxr-x 2 boco boco 4096 2013-10-21 14:55:47.000000000 +0800 telne
drwxr-xr-x 2 boco boco 4096 2013-10-21 14:24:12.000000000 +0800 测试
例二：ls -l --time-style=long-iso
[wei@localhost ~]$ ls -l --time-style=long-iso
总计 24
drwxr-xr-x 2 boco boco 4096 2013-10-16 14:49 Desktop
drwxrwxr-x 2 boco boco 4096 2013-10-21 14:55 telnet目录
drwxr-xr-x 2 boco boco 4096 2013-10-21 14:24 测试
例三：ls -l --time-style=iso
[wei@localhost ~]$ ls -l --time-style=iso
总计 24
drwxr-xr-x 2 boco boco 4096 10-16 14:49 Desktop
drwxrwxr-x 2 boco boco 4096 10-21 14:55 telnet目录
drwxr-xr-x 2 boco boco 4096 10-21 14:24 测试
例四：ls -l --time-style=locale
[wei@localhost ~]$ ls -l --time-style=locale
总计 24
drwxr-xr-x 2 boco boco 4096 10-16 14:49 Desktop
drwxrwxr-x 2 boco boco 4096 10-21 14:55 telnet目录
drwxr-xr-x 2 boco boco 4096 10-21 14:24 测试
例五：ls -l
[wei@localhost ~]$ ls -l
总计 24
drwxr-xr-x 2 boco boco 4096 10-16 14:49 Desktop
drwxrwxr-x 2 boco boco 4096 10-21 14:55 telnet目录
drwxr-xr-x 2 boco boco 4096 10-21 14:24 测试
例六：ls -l --time-style '+%Y/%m/%d %H:%M:%S'
[wei@localhost ~]$ ls -l --time-style '+%Y/%m/%d %H:%M:%S'
总计 24
drwxr-xr-x 2 boco boco 4096 2013/10/16 14:49:57 Desktop
drwxrwxr-x 2 boco boco 4096 2013/10/21 14:55:47 telnet目录
drwxr-xr-x 2 boco boco 4096 2013/10/21 14:24:12 测试
查看linux系统安装时间:（查看/etc的时间）
ls --time-style '+%Y/%m/%d %H:%M:%S' -lct /etc/ | tail -1 | awk '{print $6,$7}'