To change permission using the Linux chmod command we have to follow some syntax and rules chmod example withdraw user rights In our second example, we'll withdraw the writing rights in file2txt for all users (including the owner) using the following chmod command chmod aw file2txt The command refers to all user classes (a), and withdraws () their writing rights (w) for file2txt The final entry isThe Linux command to change permissions on a file or directory is chmod, which we like to read as change file mode chmod has two operating modes symbolic mode;
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Working With File Permissions On Your Raspberry Pi Dummies