UNIX Permissions (chmod Tips)

Some basic useful stuff on UNIX permissions and chmod command:

1. 'ls' command outputs permissions for the specified file. It outputs permissions for all the files and directories in the current directory if you don't specify FILE_NAME:

   ls -lg FILE_NAME

2. If you want to set permission for particular files or directories then you can use find + exec. The first command will change permission of all the directories. The second one specifies the search pattern - all .HTM files.

   find . -type d -exec chmod 755 {} \;
   find . -type f -name '*.htm*' -exec chmod 755 {} \;

   755 here is the permissions code.