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The whatis whereis comands


pcorajr
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The other day i was talking to a good friend of mine who just jumped into the linux wagon.

he told me that wile navigating thru his file system he tumble across 2 comands whatis and whereis but he did now know how to use them. so we headed to my house jumped on the pc and fired up the console. and i got to say we both learned a load of stuff just by using these 2 commands:

 

 

whatis (1) - search the whatis database for complete words

 

whereis (1) - locate the binary, source, and manual page files for a command

 

 

after we found out what the commands did we got creative:

 

cd /sbin; whatis * |more

addpart: nothing appropriate

agetty (8) - alternative Linux getty

arp (7) - Linux ARP kernel module

arping: nothing appropriate

badblocks (8) - search a device for bad blocks

blkid (8) - command-line utility to locate/print block device at

tributes

blockdev (8) - call block device ioctls from the command line

chkconfig (8) - updates and queries runlevel information for system

services

clock (n) - Obtain and manipulate time

clock (3) - Determine processor time

clone-netprofile: nothing appropriate

consoletype (1) - print type of the console connected to standard inpu

t

ctrlaltdel (8) - set the function of the Ctrl-Alt-Del combination

debugfs (8) - ext2 file system debugger

delpart: nothing appropriate

depmod [depmod-24] (8) - handle dependency descriptions for loadable kernel m

odules

depmod [depmod-25] (8) - program to generate modules.dep and map files

 

 

as you can see the comand tells you what files are in the directory and also tells you what they are used for. very handy. say you dont know were certain binary is ? whereis will tell you and also provide you with its man page location.

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