POS 420 Week 3 Unix Individual Assignme
University of Phoenix Material
File Processing Commands Worksheet – 10 Marks – Week 3
1. I am now in $HOME/sales/east directory. I want to have my login shell display me today’s date whenever I login every time by telnet.
For this, what steps I have to do? (1/2) A. $ vi .profile
Type one line : echo "Today’s date is `date`"
$ chmod +x .profile
$ . .profile
B. $ cd ../..
$ vi .profile
Type one line : echo "Today’s date is `date`"
$ export .profile
$ .profile C. $ cd $HOME
$ vi .profile
Type one line : echo "Today’s date is `date`"
$ . .profile D. $ vi ~/.profile
Type one line : echo "Today’s date is "date"
$ . .profile
Ans: C 2A. Why I am getting this error when I assign like this ? (1/2)
$ FIRST-NAME=smith ksh: FIRST-NAME=smith: not found.
Ans: between First and NAME should be _ (underscore) not – (dash)
2B. Under ksh or bash shell environments, what is the problem here ? (1/2)
$ export PATH=/usr/bin /usr/local/bin /usr/ucb/bin
Ans: There needs to be a “:” after all 3 of the bin statements 3. Executing cp temp/temp1 temp1.txt it will result in... (1/2)
A. Error since the same filename is used
B. Error since an extension is used for the second temp1
C. It will move the contents of temp1 from directory temp to temp1 of current directory and when finished it will erase the contents of temp1 of temp directory
D. It will copy temp1 from directory temp to temp1.txt of current directory
Ans : D 4. What kind of files will be matched by the following when you list by ls command: (3)
For Ex :
$ ls [a-z][0-9]
Ans : This matches any file with 2 characters, first being a lower case letter and the second being a number from 0 to 9
A. ls [0-9][a-z][0-9][A-Z] -- Note : there are no spaces anywhere.
Ans: This matches a file with 4 characters, first is a number from 0 to 9, second is a lower case letter from a-z, third is a number from 0-9, and fourth is upper case letter from A-Z.
B. ls
File Processing Commands Worksheet – 10 Marks – Week 3
1. I am now in $HOME/sales/east directory. I want to have my login shell display me today’s date whenever I login every time by telnet.
For this, what steps I have to do? (1/2) A. $ vi .profile
Type one line : echo "Today’s date is `date`"
$ chmod +x .profile
$ . .profile
B. $ cd ../..
$ vi .profile
Type one line : echo "Today’s date is `date`"
$ export .profile
$ .profile C. $ cd $HOME
$ vi .profile
Type one line : echo "Today’s date is `date`"
$ . .profile D. $ vi ~/.profile
Type one line : echo "Today’s date is "date"
$ . .profile
Ans: C 2A. Why I am getting this error when I assign like this ? (1/2)
$ FIRST-NAME=smith ksh: FIRST-NAME=smith: not found.
Ans: between First and NAME should be _ (underscore) not – (dash)
2B. Under ksh or bash shell environments, what is the problem here ? (1/2)
$ export PATH=/usr/bin /usr/local/bin /usr/ucb/bin
Ans: There needs to be a “:” after all 3 of the bin statements 3. Executing cp temp/temp1 temp1.txt it will result in... (1/2)
A. Error since the same filename is used
B. Error since an extension is used for the second temp1
C. It will move the contents of temp1 from directory temp to temp1 of current directory and when finished it will erase the contents of temp1 of temp directory
D. It will copy temp1 from directory temp to temp1.txt of current directory
Ans : D 4. What kind of files will be matched by the following when you list by ls command: (3)
For Ex :
$ ls [a-z][0-9]
Ans : This matches any file with 2 characters, first being a lower case letter and the second being a number from 0 to 9
A. ls [0-9][a-z][0-9][A-Z] -- Note : there are no spaces anywhere.
Ans: This matches a file with 4 characters, first is a number from 0 to 9, second is a lower case letter from a-z, third is a number from 0-9, and fourth is upper case letter from A-Z.
B. ls