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How to use grep

 
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# 1  
Old 10-22-2008
How to use grep
Hi, I'm with difficult to find this special characters below into files

<VENDORASN />

Anybody can help me?

Thanks,
Leandro Takeda
# 2  
Old 10-22-2008
Try using fixed strings rather than regular expressions -
Code:
 grep -F '<VENDORASN />'  my_inputfile

# 3  
Old 10-22-2008
Hammer & Screwdriver Is this what you mean?
Code:
> cat file288
<VENDORASN />  Leandro
<VEND /> Not here
ASN /> Not this lien either
<VENDORASN /> found a second instance
end

> cat file288 | grep "<VENDORASN />"
<VENDORASN />  Leandro
<VENDORASN /> found a second instance

# 4  
Old 10-22-2008
It worked! Smilie Thanks.... but also, little q

Why it doesnt work?

for [ grep "<VENDORASN></VENDORASN>" input/ASN/* ] do
echo "Files that will be transfer: " $1
done

Thanks,
# 5  
Old 10-22-2008
Hammer & Screwdriver OK, here goes
Code:
> for filename in `grep "file1" ~/tmp/exec_from_file/* | cut -d":" -f1 | sort -u` ; do echo $filename; done
/home/xxx/tmp/exec_from_file/calc_file10
/home/xxx/tmp/exec_from_file/proc_100

The above lists out files in a particular directory that have "file1" in them.

The command ould be on several lines:
Code:
for filename in `grep "file1" ~/tmp/exec_from_file/* | cut -d":" -f1 | sort -u` 
  do 
  echo $filename
done

And, perhaps instead of echo'ing the $filename variable, you could do anythig with it.
# 6  
Old 10-22-2008
Excellent...

Can I do also something like:

Quote:
for filename in `grep "file1" ~/tmp/exec_from_file/* | cut -d":" -f1 | sort -u`
do
if [ "grep is true" ]
echo grep is true
else
echo grep is false
fi
echo $filename
done
to show a message when the option in the grep statement is true?

Thanks in advanced.

Leandro Takeda
# 7  
Old 10-22-2008
Hammer & Screwdriver Kind of possible
The following will give any/all filenames that are successful:
Code:
for filename in `grep "file1" ~/tmp/exec_from_file/* | cut -d":" -f1 | sort -u` 
  do 
  echo $filename
done

You could instead:
Code:
for filename in `grep "file1" ~/tmp/exec_from_file/* | cut -d":" -f1 | sort -u` 
  do 
  echo $filename
  match_file=1
done
if [ $match_file -eq 1 ]
  then
  echo "Matches were found"
fi

Or, if you only wanted to see if there were files, you could have changed the for-do---done command to merely check for success.

Suggest you experiment a little with these commands to understand what I am showing.
 
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