Computer Science - Unix - Discussion

Discussion Forum : Unix - Section 1 (Q.No. 22)
22.
Which of the following commands is used to update access and modification times of a file?
grep
wc
touch
cat
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

Saurabh said:   9 years ago
There are various options with touch I will be talking about -m (modification time).

Let say you created a file and modified it at 12.

Use the command "stat file_name" it will give details about access, modify and change time it will show the modify time as 12.

Now let say at 12 : 30 you enter the command "touch -m file_name" it will change the modify time to 12 :30.

You can check that by "stat file_name".

S.R.R. said:   1 decade ago
Touch:

-a, change the access time only.

-c, if the file does not exist, do not create it and do not report this condition.

-d date_time, use the date_time specified to update the access and modification times.

-m, change the modification time only.

-r file, use the access and modification times of file.

-t time, use the time specified (in the format below) to update the access and modification times.

Raj said:   9 years ago
How touch command update access of file?

Reetu said:   1 decade ago
How touch command update access?

Thiru said:   1 decade ago
I agree with Reetu

Ganesh said:   1 decade ago
Explain how?

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