Chapter 4 Linux commands
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Created by:
leannelizabeth1 on April 16, 2011
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25 terms
Terms | Definitions |
|---|---|
 chgrp | Changes the group assigned to a file or directory |
| chmod | Changes the file permissions of a file or directory |
| chown | Changes the owner and optionally the group assigned to a file or directory |
| cpio | Creates archives; also reads archive files created by the tar command |
| df | Displays file system summary information such as device, mount point, percentage used, and total capacity |
| fdformat | Formats a 3.5-inch disk |
| find | Searches the file system for files matching given characteristics |
| groups | Lists all groups of which the currently effective UID is a member |
| gunzip | Uncompresses a file that has been compressed using gzip |
| gzip | Compresses files on a Linux system |
| id | Displays the currently effective UID, GID, and groups of which the effective UID is a member |
| ln | Creates a hard or symbolic (soft) link |
| logname | Displays the user name used to log in to Linux |
| mount | Makes a logical or physical device available as a file system in the Linux directory structure |
| newgrp | Temporarily changes the effective group of a logged in user |
| stat | Displays information about a file or directory taken from the corresponding inode |
| su | Changes your effective UID, taking on the identity of a different user than the one used to log in |
| tar | Creates a single file that contains many other files, often compressed to save space |
| umask | Blocks default file permissions that would otherwise be assigned when creating a new file or directory |
| umount | Unmounts a file system that is currently accessible as part of the Linux directory structure |
| vigr | Safely edits the /etc/group file |
| vipw | Safely edits the /etc/passwd file |
| w | Lists all users currently logged in, with details about the programs each is running |
| who | Lists all users currently logged in, with details about from where each is logged in |
| whoami | Displays the currently effective UID |
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