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Using Pipes and Redirection

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Homework and Emergencies Homework & Coursework Questions Using Pipes and Redirection
# 1  
Old 02-16-2010
Using Pipes and Redirection
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:
Create a pipe to show the number of people who are logged into the system right now.

Create a pipe to show how many files you have in your home directory.



2. Relevant commands, code, scripts, algorithms:
who




3. The attempts at a solution (include all code and scripts):
who | count
who | number




4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Kansas State, Manhattan, KS Brian Hucklebee CS146
# 2  
Old 02-16-2010
A very simple thing is,

Code:
who | wc -l

If you want to be more clear and right, then

Code:
who | cut -d' ' -f 1 | uniq | wc -l

# 3  
Old 02-16-2010
Tools number of files in directory
Code:
>ls | wc -l

shows # files in current directory
Code:
>ls ~| wc -l

shows # files in home directory
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