Basic FTP commands

?

to request help or information about the FTP commands

ascii

to set the mode of file transfer to ASCII (this is the default and transmits seven bits per character)

binary

to set the mode of file transfer to binary (the binary mode transmits all eight bits per byte and thus provides less chance of a transmission error and must be used to transmit files other than ASCII files)

bye

to exit the FTP environment (same as quit)

cd

to change directory on the remote machine

close

to terminate a connection with another computer

close brubeck

closes the current FTP connection with brubeck, but still leaves you within the FTP environment.

delete

to delete (remove) a file in the current remote directory (same as rm in UNIX)

get

to copy one file from the remote machine to the local machine

get ABC DEF

copies file ABC in the current remote directory to (or on top of) a file named DEF in your current local directory.

get ABC

copies file ABC in the current remote directory to (or on top of) a file with the same name, ABC, in your current local directory.

help

to request a list of all available FTP commands

lcd

to change directory on your local machine (same as UNIX cd)

ls

to list the names of the files in the current remote directory

mkdir

to make a new directory within the current remote directory

mget

to copy multiple files from the remote machine to the local machine; you are prompted for a y/n answer before transferring each file

mget *

copies all the files in the current remote directory to your current local directory, using the same filenames. Notice the use of the wild card character, *.

mput

to copy multiple files from the local machine to the remote machine; you are prompted for a y/n answer before transferring each file

open

to open a connection with another computer

open brubeck

opens a new FTP connection with brubeck; you must enter a username and password for a brubeckaccount (unless it is to be an anonymous connection).

put

to copy one file from the local machine to the remote machine

pwd

to find out the pathname of the current directory on the remote machine

quit

to exit the FTP environment (same as bye)

rmdir

to to remove (delete) a directory in the current remote directory

ERROR "sudo: sorry, you must have a tty to run sudo"

The reason for this is an update along the way with sudo locked it down further by adding the below line to /etc/sudoers configuration file. 1 Defaults requiretty To allow a remote script to login and run a command via sudo simply comment out that line as shown below. 1   # Commented out so remote script can login and run a command without a tty
2   # Defaults requiretty If requiretty is set, sudo will only run when the user is logged in to a real tty. This will disallow things like 'rsh somehost sudo ls' since rsh does not allocate a tty; because it is not possible to turn off echo when there is no tty present.

HDD test speed

# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3134 MB in 2.00 seconds = 1569.12 MB/sec
Timing buffered disk reads: 242 MB in 3.00 seconds = 80.55 MB/sec

# hdparm -tT /dev/sda
/dev/hda:
Timing cached reads: 176 MB in 2.00 seconds = 87.87 MB/sec
Timing buffered disk reads: 86 MB in 3.05 seconds = 28.16 MB/sec

# hdparm -tT /dev/sda
/dev/hdb:
Timing cached reads: 844 MB in 2.00 seconds = 421.50 MB/sec
Timing buffered disk reads: 116 MB in 3.01 seconds = 38.55 MB/sec