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Old 03-17-2008, 01:24 AM   #1
jianelisj
LQ Newbie
 
Registered: Mar 2008
Posts: 18

Rep: Reputation: 0
Make a Script Fle that opens A file and prints its contents (processes names) once


i want to make a script file that opens a file with name procs (that exists in hom directory) and prints the processes that are written into it (the file procs consists of procceses names each one in a different line. If a process name is written twice then it must be print ony one time)

My solution is:

for i in ./procs
do
echo $i | uniq
done

Is this solution correct? I would aprreciate any help
 
Old 03-17-2008, 01:34 AM   #2
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
Distribution: Ubuntu
Posts: 9,211

Rep: Reputation: 198Reputation: 198
Quote:
Is this solution correct?
What happens when you run it?
 
Old 03-17-2008, 03:00 AM   #3
konsolebox
Senior Member
 
Registered: Oct 2005
Distribution: Gentoo, Slackware, LFS
Posts: 2,248
Blog Entries: 8

Rep: Reputation: 235Reputation: 235Reputation: 235
if it's ok to sort the contents of procs, do

Code:
for i in $(sort ./procs | uniq); do
   echo ${i}
done
if not sorting, use temporary variables like:
Code:
for i in $(<./procs); do
  if eval "[ -z \"${temp_${i}}\" ]"; then
     eval temp_${i}=1
     tempvars=${tempvars}\ temp_${i}
     echo "${i}"
  fi
done
unset ${tempvars} tempvars
LOL: looked at all his posts.. this guys looks like a *BOT*!.. anyway i'm just finishing my post since i already started it.

Last edited by konsolebox; 03-17-2008 at 03:01 AM.
 
Old 03-17-2008, 07:27 AM   #4
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
Distribution: Ubuntu
Posts: 9,211

Rep: Reputation: 198Reputation: 198
Hmmm... <goes and looks> heh :\ I see what you mean.
Bots don't normally respond to replies though do they? With such a lot (and about one per day) all around the same somewhat narrow subject (sorting files, or through files, in bash) I could suspect homework here.

<checks harder>
BUSTED!

These are homework questions.

Was previously told that homework help is easier to get if he shows us what he's tried, since then, he's been posting some random code as well.

Last edited by Simon Bridge; 03-17-2008 at 07:35 AM.
 
Old 03-17-2008, 01:27 PM   #5
Tinkster
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Registered: Apr 2002
Location: in a fallen world
Distribution: slackware by choice, others too :} ... android.
Posts: 23,066
Blog Entries: 11

Rep: Reputation: 910Reputation: 910Reputation: 910Reputation: 910Reputation: 910Reputation: 910Reputation: 910Reputation: 910
Quote:
Originally Posted by jianelisj View Post
i want to make a script file that opens a file with name procs (that exists in hom directory) and prints the processes that are written into it (the file procs consists of procceses names each one in a different line. If a process name is written twice then it must be print ony one time)

My solution is:

for i in ./procs
do
echo $i | uniq
done

Is this solution correct? I would aprreciate any help
You clearly need to start reading your course material.

There's no point in regurgitating stuff for you if you're
not taking anything in.

Do your own homework.
 
  


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