linux 权限变更-样例-笔记（1）

root@ayl-System-Product-Name:/usr/local/bin# ls -l

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total 38900
-rwxr-xr-x 1 root root     6536 10月 22 21:57 apt
-rwxr-xr-x 1 root root      504 9月  13 19:08 gnome-help
-rwxr-xr-x 1 root root      196 5月   7  2017 highlight
-rwxr-xr-x 1 root root      243 8月  30  2017 mint-sha256sum
-rwxr-xr-x 1 root root      944 5月   7  2017 search
-rw-rw-r-- 1 ayl  ayl  39804584 12月  5 12:32 wkhtmltopdf
-rwxr-xr-x 1 root root      521 9月  13 19:08 yelp

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root@ayl-System-Product-Name:/usr/local/bin# chmod 755 wkhtmltopdf 

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root@ayl-System-Product-Name:/usr/local/bin# ls -l

------------------------------------------------
total 38900
-rwxr-xr-x 1 root root     6536 10月 22 21:57 apt
-rwxr-xr-x 1 root root      504 9月  13 19:08 gnome-help
-rwxr-xr-x 1 root root      196 5月   7  2017 highlight
-rwxr-xr-x 1 root root      243 8月  30  2017 mint-sha256sum
-rwxr-xr-x 1 root root      944 5月   7  2017 search
-rwxr-xr-x 1 ayl  ayl  39804584 12月  5 12:32 wkhtmltopdf
-rwxr-xr-x 1 root root      521 9月  13 19:08 yelp

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root@ayl-System-Product-Name:/usr/local/bin# chown root:root wkhtmltopdf 

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root@ayl-System-Product-Name:/usr/local/bin# ls -l

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total 38900
-rwxr-xr-x 1 root root     6536 10月 22 21:57 apt
-rwxr-xr-x 1 root root      504 9月  13 19:08 gnome-help
-rwxr-xr-x 1 root root      196 5月   7  2017 highlight
-rwxr-xr-x 1 root root      243 8月  30  2017 mint-sha256sum
-rwxr-xr-x 1 root root      944 5月   7  2017 search
-rwxr-xr-x 1 root root 39804584 12月  5 12:32 wkhtmltopdf
-rwxr-xr-x 1 root root      521 9月  13 19:08 yelp

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root@ayl-System-Product-Name:/usr/local/bin#