Linux how to check if a file has execute permission

You can check if a file has execute permission in Linux using the ls command with the -l option to list detailed file information. Each line in the output represents a file or directory, and the permissions are displayed in the first column. Execute permission is denoted by the letter "x."

Here's how to check for execute permission:

Open a terminal.

Use the following command to list the permissions of a file:

bash

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ls -l /path/to/your/file

Replace /path/to/your/file with the actual path to the file you want to check.

Examine the output. It will look something like this:

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-rwxr-xr-x 1 user user 12345 Sep 13 12:34 yourfile

In this example, the file "yourfile" has execute permission because there is an "x" in the first position of the permission string (-rwxr-xr-x).

Here's a breakdown of the permission string:

The first character represents the file type (e.g., - for a regular file).

The next nine characters represent the file's permissions in groups of three:

The first group of three characters (rwx) represents the owner's permissions.

The second group of three characters (r-x) represents the group's permissions.

The third group of three characters (r-x) represents others' (everyone else's) permissions.

In the example above, the "rwx" in the owner's permissions indicates that the owner has read, write, and execute permissions. The "r-x" in the group's and others' permissions indicates that they have read and execute permissions but not write permission.

If you see an "x" in the appropriate position, it means the file has execute permission for the corresponding group (owner, group, or others). If there's a "-" instead of an "x," it means the permission is not granted.

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