Linux Command Directory

Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.


devdump isoimage

Interactively display the contents of the device or filesystem image isoimage. devdump displays the first 256 bytes of the first 2048-byte sector and waits for commands. The prompt shows the extent number (zone) and offset within the extent, and the contents display at the top of the screen.



Search forward for the next instance of the search string.


Search backward within the image.


Search forward within the image.


Prompt for a new search string.


Prompt for a new starting block and go there.



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