1-4 mkdir和touch命令
2016.5.31
touch
创建空文件，用于测试
touch test
[root@test2 home]# touch test
当目标文件已存在时，将更新该文件的时间而已
[root@test2 home]# touch test
[root@test2 home]# ls -lh | grep test
-rw-r--r-- 1 root root 0 Jun 27 09:57 test
[root@test2 home]#
synopsis
synopsis (n.) 1610s, "a general view, an outline," from Late Latin synopsis "a synopsis," from
Greek synopsis "a general view," literally "a seeing altogether, a seeing all at once," from syn-
"together" (see syn-) + opsis "sight, appearance," from PIE *okw- "to see" (see eye (n.)).
synopsis [syn·op·sis || sɪ'nɑpsɪs /-'nɒp-]
n. 概要, 大意, 摘要