Some Frequently used Linux Commands
May 24th, 2009
Here are some of the frequently and very useful linux commands
| Command | Description |
| top | A dynamic task list |
| ps -e | To view the current snapshot of proccess at a time |
| kill <process-id> | Kill a process by specifying its id. Process id can be found from the previous command |
| killall <process-name> | Kill a process with its process name. The process name can be found using ps -e command |
| fdisk -l | Displays the partion table and list of all the memory devices connected to the system |
| mount /dev/<device-name> /path/to/mountpoint | Used to mount a external or internal memory device to the system. The device name can be found from the previous command. |
| mount -t ntfs-3g /dev/<device-name> /path/to/mountpoint -o force | To force mount a memory device which uses ntfs file system |
| sudo nautilus | To open the file browser in root mode. Normally when u open the file browser in ubuntu it will not be in root mode. Provided the currnet user is a sudoer |
| locate <file-name-pattern> | Used to search or find files by their names. Normally the search is done based on a index database. It is good to update the database before searching to get recently created files. |
| updatedb | Used to update the file index database |
| cat <filename> | Display the contents of a file |
| cat <filename> | grep <pattern> | The output of the first command is given as input to the next command using a pipe. Grep command display the lines that has pattern text |
Use, man<command-name> to get more details about all the above commands






I assume killall process-id should be killall process-name
Thats was a typing mistake, thanks for correcting me.