[root@ test_project]$ touch test.txt [root@ test_project]$ ll test.txt -rw-rw-r-- 1 root root 0 2011-08-03 13:57 test.txt 目前它似乎是664 ，我怎么能把它改成700 ？
您可以使用umask命令更改文件创build掩码。 这虽然只掩饰了一点点。 如果创build文件的应用程序没有请求设置位，那么umask将不会设置它。 使用umask 077文件一般会被创build600和目录700
你可以在你的$ HOME / .profile中设置默认的umask
你想使用umask
sente@oslo: $ umask 0022 sente@oslo: $ umask -S u=rwx,g=rx,o=rx sente@oslo: $ touch foo sente@oslo: $ ls -l foo -rw-r--r-- 1 sente pg2662512 0 2011-08-02 23:13 foo sente@oslo: $ umask -S u=rwx,g=,o= u=rwx,g=,o= sente@oslo: $ touch bar sente@oslo: $ ls -l bar -rw------- 1 sente pg2662512 0 2011-08-02 23:13 bar
我想你还是需要chmod u + x。
sente@oslo: $ help umask ：
umask: umask [-p] [-S] [mode] The user file-creation mask is set to MODE. If MODE is omitted, or if `-S' is supplied, the current value of the mask is printed. The `-S' option makes the output symbolic; otherwise an octal number is output. If `-p' is supplied, and MODE is omitted, the output is in a form that may be used as input. If MODE begins with a digit, it is interpreted as an octal number, otherwise it is a symbolic mode string like that accepted by chmod(1).