command

Question 1

ls cds.log

Answer 1

to see if the file cds.log exist in the current directory “only to display not to open the file or dir”

Question 2

wild card characters

Answer 2

• and ? are called wildcard characters.
• any character wildcard (matches any character or string of characters, including blanks.)

? One character wildcard (? matches only one and only one character)

Question 3

ln -s

Answer 3

Link file with symbol

Question 4

what follows on LOGLVS

And what it is for?

Answer 4

LOGLVS is to compile the net list
(:cir netlist_filename)
(:con topcell name) to confine the netlist.

Question 5

PDRACULA process

Answer 5

/g draculaLVS.run
/f

To create the jxrun.com file and type the command.

Question 6

What to do before PDRACULA but after LOGLVS?

Answer 6

Edit the draculaLVS.rul file to change the 4lines to match with the file you are running LVS to

Question 7

ls hw*.gds

Answer 7

hw(any character or strings of characters) with .gds at the end

Question 8

~username

Answer 8

username’s home directory

Question 9

ls hw?.gds

Answer 9

all hw6.gds hw7.gds hw8.gds hw9.gds will listed (but not the hw10.gds or hw.gds)

Question 10

ls -l project

Answer 10

to list all the file in the project directory

Question 11

cd ..

Answer 11

go to parent directory (one level up)

Question 12

Meanings of "options"
a,                        l, 
F,                        t,
h,                       r,
R,  and more.......

Answer 12

option(s) begins with - in the front following space after the command.
ls -a list all entires, including dot files
ls -al list all in long format (additional information)
ls -t list file on time stamp.
ls -hl list file in human read able format
ls -r list file in reverse “alphabet” order
ls -rt list file in “time” reverse order
ls -F list file with “file type” attached to it
ls -R list all the dir and file and sub files and dir all the way to bottom levels

Question 13

ls hw??.gds

Answer 13

list all the the file hw(2character excluding space) with .gds at the end.

Question 14

~/ “tilde”

Answer 14

my (current) home directory

Question 15

. “dot”

Answer 15

current directory

Question 16

ls -tF ~gilbert_c/project

Answer 16

to list all the file in gilbert’s project directory in time stamp order with file type attached to it.

Question 17

cd

Answer 17

change directory

Question 18

ls

Answer 18

list the name(s) of file(s) and director(ies) in your current directory. Option(s) can be applied to show hidden “dot” files.

Question 19

What are 4 lines on draculaLVS that need to be changed to wait?

Answer 19

1st. Tope filename
2ns. file path /filename.gds
3rd. Filename (will add .lvs)
4rth. Filename.out

Question 20

pwd

Answer 20

Print your work directory

Question 21

Remove directory

Answer 21

rm directory (empty) /rm -r directory (recursive)

Question 22

rename file/folder

Answer 22

mv file file_rename