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| Question | Answer |
| What does the ls command do? | list files |
| What does the "." character represent? | current directory |
| What does the "." character mean at the beginning of a file or directory | file hidden |
| What does the d mean: drwxr-xr-x 1 root root 38 Jul 23 18:43 apt | File Type |
| What is File type d? | directory |
| What is File type -? | regular file |
| What is File type l? | symbolic link |
| What is File type s? | socket |
| What is File type p? | pipe |
| What is File type b? | block file |
| What is File type c? | character file |
| The rwx is the permission to? -rwxr-xr-- | Owner Permissions |
| The r-x is the permission to? -rwxr-xr-- | Group Permissions |
| The r-- is the permission to? -rwxr-xr-- | Everyone Else’s Permissions |
| What does the 1 mean? drwxr-xr-x 1 | Hard link Count, one directory name that links to this file |
| What does the syslog mean? -rw-r----- 1 syslog | User Owner of the file |
| What does the utmp represent? -rw-rw-r-- 1 root utmp | Group Owner |
| What does the 1087150 mean for the file? -rw-r----- 1 syslog adm 1087150 | File Size in bytes |
| Whatt does the Jul 17 03:36 mean? drwxr-xr-x 1 root root 32 Jul 17 03:36 | Timestamp, when file's contents were last modified |
| What does the bootstrap.log mean? -rw-r--r-- 1 root root 47816 Jul 17 03:36 bootstrap.log | name of the file or directory |
| How is the ls output sorted as? | alphabetically by file name |
| Why is it good to use the file command before accessing a file? | To make sure that it has text |
| What update can the touch command do apart from creating an empty file? | update the modification timestamp |
| How many timestamps does a file have? | 3 |
| What is the command to see all 3 timestamps on a file? | stat command |
| What kinds of permissions do you need to copy a file? | execute and read permissions on the file (r-x) |
| What kinds of permissions do you need to paste a file in a directory? | write and execute permission on the directory (-wx) |
| What does the "~" represent? | home directory |
| What kind of permissions does your home directory always have? | write and execute permission(-wx) |
| What is the use for the mv command? | move a file from one pathname to another |
| What happens to the original file when you use mv command? | Original file gets deleted |
| When moving a file, what kind of permissions do you need on the origin and destination? | write and execute permissions (-wx) |
| What is the use for the rm command? | delete files and directories |
| What kind of permissions do you need to delete a file withing a directory? | write and execute permission on the directory |
| What is the name of the special permission that /tmp and /var/tmp directories have? | sticky bitset |
| What type of files can the root user delete? | any file in any directory |
| What does the mkdir do? | create a directory |
| What is the use for the rmdir? | remove empty directories |
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