Posted: July 7th, 2024
What is the command to list files in a directory
Assessment Brief
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.
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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
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$ . .profile
B. $ cd ../..
$ vi .profile
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Type one line : echo "Today’s date is `date`"
$ export .profile
$ .profile
C. $ cd $HOME
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$ vi .profile
Type one line : echo "Today’s date is `date`"
$ . .profile
D. $ vi ~/.profile
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Type one line : echo "Today’s date is "date"
$ . .profile
Ans:
2A. Why I am getting this error when I assign like this ? (1/2)
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$ FIRST-NAME=tom
ksh: FIRST-NAME=tom: not found.
Ans:
2B. Under ksh or bash shell environments, what is the problem here ?
(1/2)
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$ export PATH=/usr/bin /usr/local/bin /usr/ucb/bin
Ans:
3. Executing cp temp/temp1 temp1.txt it will result in...
(1/2)
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A. Error since the same filename is usedB.
Error since an extension is used for the second temp1C. 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 :
4. What files will be matched by the following when you list by ls
command: (3)
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A. ls [0-9][0-9[a-z][A-Z]
Ans:
B. ls [A-Za-z_][A-Za-z_0-9]
Ans:
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C. ls [0-9]Z[0-9]
Ans:
5. What is the command to list files in a directory : (2) A.
Having only three alphabets:
Ans: B. Starting with a digit and
ending with a digit
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Ans:
6. There are many C programs in my directory which have an extension
of .c (ex : first.c, second.c etc). How can I concatenate all C
files into one file called "myC_files (1) Ans :
7. How do you sort first 15 lines in a file called 'datafile" ?
(1)Ans:
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8. How do you add a line to the end of an existing file "myfile"
with date stamp. (1)
Ans :
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