Interested to Buy Any Domain ? << Click Here >> for more details...
What does the following command line produce? Explain each
aspect of this line.
$ (date ; ps -ef | awk {print $1}' | sort | uniq | wc -l )
>> Activity.log
- 4 Answers
- 10375 Views
- Cisco, I also Faced
- E-Mail Answers
Answer Posted / vijay
There is a syntactical error in the question
The Actual command should be like
$(date;ps -ef | awk '{print $1}' | sort | uniq | wc -l ) >>
Activity.log
Answer::
"date" command gives the date
"ps -ef" -- gives all the process informations
awk '{print $1}'--- cuts the first column in the processes
(which is the usernames)
sort-- sorts all the usernames
uniq-- gives unique usernames
"wc -l" -- gives the total number of users running process
In compact--- The command displays the date and the number
of users(not repeated) who are executing some process.
The result when Activitylog is viwed after the execution
should be like
>>Fri Apr 3 12:48:21 IST 2009
>>38
| Is This Answer Correct ? | 16 Yes | 0 No |
Post New Answer View All Answers
How do you create a text file in linux?
How is grep so fast?
Explain the linux ‘cd’ command options along with the description?
Which command would you use to create a file system on a new hard drive?
How do I find command history in linux?
Brief about the command ff?
How do I change directories in linux command line?
How do I check my system performance?
why is the tar command used?
What is whois command?
How do I clear my run history?
What are linux commands useful?
How do I run a bash script in linux?
How do I find hostname in linux?
What is the use of cp p command?
