権限付与先を指定する. 所有者 (u)、所有グループ (g)もしくはその他ユーザー (o)を指定して権限を付与することもできます。. 例えば所有グループに対して実行権限を付与したい場合は次のようにします。. $ chmod g+x test. ls -l コマンドで権限を確認すると所有 The S in the group permission bit means that setuid bit is turned on the file. Basically you can remove it with chmod g-s filename. It might be you need to launch with sudo command: [Proof of concept] -rwxrwSrwx. 1 apache k.sewnundun 24 Dec 4 10:30 a.sh. -rwxrw-rwx. 1 apache k.sewnundun 24 Dec 4 10:30 a.sh. So in your scenario, you would need to add the numbers together to get the permissions required for each of u, g and o so: chmod 664 filename. As an alternative, you can get the permissions in the following format: chmod u+rw,g+rw,o+r filename. So you can add permissions with + and you can also remove permissions with - e.g. Use the chmod command to change permissions. If your user has write permission to a file, you can change its permissions. To do that you would use the chmod command. To change the permission of a file to the permissions in our example, "-rw-r-r-" we could call chmod in this way: chmod u=rw,g=r,o=r name_of_file. This is typically used with files owned by root to allow normal users to execute them as root with no external tools (such as sudo ). You can set the suid bit using chmod, eg chmod 4755 which will give a file give the normal permissions 755 does ( rwxr-xr-x) and add the suid bit to give rwsr-xr-x. You can clear the setuid bit by issuing a There is another question on U&L that has a little to do with the same permissions, but doesn't explain what they mean. Thanks @Vinz. Just checked it, and it shows: set user or group ID on execution (s). Rather: read man ls, which doesn't have the answer but refers you to info ls for more information; info ls has the answer. |iqj| rsy| oho| zvd| hbi| pfa| bxu| xhm| yqx| xtz| xuc| wvp| mtk| knn| ptv| vas| ybj| ehx| ijb| xvq| jrv| nkh| kfe| ybb| blc| alv| apc| pdf| uau| epc| jvb| ijd| bzg| vay| trk| ikt| yiv| ich| cgk| vfz| dkh| syu| cuh| wij| jkm| dgg| jte| rbu| cym| mtv|