By default a lot of Linux systems will let users copy over or delete data without warning. We can turn on interactivity using the -i option to cp, mv and rm. However, if we wanted to make this behavior the default we can by aliasing these commands in our bashrc file. We also source the bashrc file so our aliases are active immediately.
- [Instructor] In many Linux systems,…the default behavior is to not warn the user…when carrying out destructive operations.…On the command line, we can pass the -I option…to cp, mv and rm to turn on interactivity,…which asks for confirmation…before doing anything destructive.…To make this behavior persist across reboots,…we need to place an alias in our shell start up file.…We'll want to edit our bashrc file in an editor.…I'm going to use Vim,…but you can use a graphical gEdit, if you'd like.…So in a terminal, I'll type vim (space) ~/.bashrc…and hit enter.…
We'll want to go into insert mode by pressing the I key…or the insert key.…And we'll want to go to the end of the last line,…which is User specific aliases and functions…and hit enter.…Here we'll add our aliases.…Type in alias (space) cp=…(single quote) cp (space) -i(single quote)…To add interactivity to mv,…type in alias mv=…(single quote) mv (space) -i(single quote)…To add interactivity to rm,…type in alias (space) rm=…(single quote) rm (space) -i(single quote)…
- Define file Access Control Lists.
- Describe what extended globs add to Linux pattern matching.
- State why file system recovery tools are so important for Linux users.
- Recall what execute permissions on a directory allows.
- Cite the maximum allowed default permissions on a file in Linux.
- List some of the advantages of ACLs over standard Unix permissions.
Skill Level Intermediate
Linux: Desktops and Remote Accesswith Grant McWilliams1h 44m Intermediate
1. Linux Files
2. Manipulate Files
3. Standard Unix Permissions
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