chmod notes

SYNOPSIS

chmod 可用來改變檔案屬性


DESCRIPTION

以下是可以設置的屬性:

分類:
a all
o owner
g group
a another

操作元:
= 直接指定
- 移除
+ 新增

屬性:
r read
w write
x execute
t saved-text (sticky)
s "u+s" sets SUID, "g+s" sets SGID.


EXAMPLES

chmod 0755 script.sh
chmod 755 script.sh
chmod 644 test.txt

chmod a+x *.sh
chmod a-x *.sh
chmod u=rwx,g=rx,o=rx script.sh
chmod u=rwx,go=rx script.sh
chmod u+rwx,g+rx,g-w,o+rx,o-w script.sh
chmod u+rwx,go+rx,go-w script.sh