You can generate a master list of all your subjects and
the location of their raw PET data by doing this:

$> list_ecat_archive -image -l name1 name2 ... name55 > /data/aging/nling/docs/mystudy5_dat_petfiles.txt 

You can specify as many names as you want, either first name or last
name or both, separated by a space. Here is a sample search for three
patients (bento, hierophant and bubble):

$>list_ecat_archive -image -l bento hierophant bubble > /data/aging/nling/docs/sample_petfiles.txt

You can view the contents of the file using the command:

$> ls sample_petfiles.txt | less 

(the "| less" will display the info. one screen at a time - useful if
your file is really long.  You escape from the viewer by typing "q")

File type  OD    Size    Date        Time     File Name
-------------------------------------------------------------------------------
ECAT IMAGE 36A   2065920 19 Nov 1998 11:18:15 Bento_Phil_85f_4875_de8.v
ECAT IMAGE 36A   2065920 19 Nov 1998 11:31:47 Bento_Phil_85f_4878_de11.v
ECAT IMAGE 36A   2065920 19 Nov 1998 11:47:04 Bento_Phil_85f_487b_de14.v
ECAT IMAGE 36A   2065920 19 Nov 1998 12:00:57 Bento_Phil_85f_487e_de17.v
ECAT IMAGE 36A   2065920 19 Nov 1998 12:11:14 Bento_Phil_85f_4881_de20.v
ECAT IMAGE 36A   2065920 19 Nov 1998 12:24:58 Bento_Phil_85f_4884_de23.v
ECAT IMAGE 37A   2065920  7 Dec 1998 11:05:02 Bubble_Aurora_101_4a2e_de8.v
ECAT IMAGE 37A   2065920  7 Dec 1998 11:14:34 Bubble_Aurora_101_4a31_de11.v
ECAT IMAGE 37A   2065920  7 Dec 1998 11:32:26 Bubble_Aurora_101_4a34_de14.v
ECAT IMAGE 37A   2065920  7 Dec 1998 11:42:47 Bubble_Aurora_101_4a37_de17.v
ECAT IMAGE 37A   2065920  7 Dec 1998 11:52:00 Bubble_Aurora_101_4a3a_de20.v
ECAT IMAGE 37A   2065920  7 Dec 1998 12:01:40 Bubble_Aurora_101_4a3d_de23.v
ECAT IMAGE 36B   2065920  2 Dec 1998 13:51:35 Hierophant_Sylvana_87d_49c0_de8.v
ECAT IMAGE 36B   2065920  2 Dec 1998 14:03:24 Hierophant_Sylvana_87d_49c3_de11.v
ECAT IMAGE 36B   2065920  2 Dec 1998 14:18:05 Hierophant_Sylvana_87d_49c6_de14.v
ECAT IMAGE 36B   2065920  2 Dec 1998 14:28:53 Hierophant_Sylvana_87d_49c9_de17.v
ECAT IMAGE 36B   2065920  2 Dec 1998 14:39:58 Hierophant_Sylvana_87d_49cc_de20.v
ECAT IMAGE 36B   2065920  2 Dec 1998 14:50:59 Hierophant_Sylvana_87d_49cf_de23.v

OD stands for optical disk - all PET data is archived to optical disks
numbered 1 to whatever (by February of 2004, there were more than 90
disks).  It also indicates whether the file is on side A or side B of
the disk. This is important information!

(The ">" symbol in the command line tells the computer to write/save
the results of the search to the file "sample_petfiles.txt".  It is
called the redirect symbol in the Unix world.  Think of it as an arrow
pointing toward the file where you want the information stored.)

To make a printout of this list, I would switch to the
/data/aging/nling/docs directory and execute the following
commands:

$> a2ps sample_petfiles.txt -o sample_petfiles.ps
$> lp sample_petfiles.ps

a2ps is the program that converts ascii to postscript.

These two steps can be combined:

$> a2ps sample_petfiles.txt | lp

What I've told the system is to take the file sample_petfiles.txt,
convert it from ascii to postscript format and feed the postscript
information to the printer.  


To send the postscript directly to the printer AND save a copy of the
.ps file:

$> a2ps sample_petfiles.txt -o sample_petfiles.ps | lp

, the | symbol is
called a "pipe" and will take the results of the first operation
(a2ps) and feed it to the next one, which in this case is lp (the
command to send a file or some information to the printer).

If I want to save an electronic copy of this information, I have to
break the procedure into two steps: