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Full Discussion: Parse file name out of UNC path
Top Forums Shell Programming and Scripting Parse file name out of UNC path Post 302647743 by bytesnoop on Monday 28th of May 2012 06:54:40 PM
Old 05-28-2012
Quote:
Originally Posted by Corona688
It's staring me in the face.

Code:
# create array of failed source UNC paths.
mapfile -t PATH <path

PATH is a special variable.

Once you overwrite it with this garbage, your shell will no longer be able to find external commands like sed.
Smilie Wow, that was the culprit?! Sorry to have waisted your time. I appreciate the help and thanks for helping me learn.

---------- Post updated at 06:54 PM ---------- Previous update was at 06:42 PM ----------

Quote:
Originally Posted by bakunin
You "cook up" a file <path> in your first line, which should be a single sed (awk, text-filter-of-your-choice) statement, while it is a whole pipeline of different commands. That could and should be optimized, but let us put that aside for the moment.
Definitely the least of my worries but I will definetly look into sed for this. I know I can make sed "grep" out the string and since if I don't use the global option I take care of de-duplication. My only issue with employing sed would be, how do I delete the first 54 characters of each line it finds? I got it to work before in another part of my code by haven't been able to do it since. I'll figure it out.

Quote:
Originally Posted by bakunin
After creating file <path> you parse it into an array PATH (which is at least dangerous, because PATH is a special variable to the shell) and then circle through this array writing two new files. What is the array for when you already have the same information in your file?
My initial program didn't use array's but I couldn't get a while loop to read through the <path> file and then process the strings with the string operations for folder and filename. I found that by passing the elements of the array in to the while loop the string operations worked and achieved my goal.

Quote:
Originally Posted by bakunin
Code:
grep "ERROR 5" $1 |colrm 1 54 |uniq |tr -d '\r' >path

typeset pathname=""
while read pathname ; do
	echo "${pathname##*\\}" >>file
	echo "${pathname%\\*}" >>folder
done < path

# wrap each string from temp files in double quotes.
sed 's/^/"/; s/$/"/' file >>file.sed
sed 's/^/"/; s/$/"/' folder >>folder.sed

I love this idea, and it was something I was trying to do and failed at (see previous excuse). While this looks sound, it does not populate the files correctly. The file <file> contains the entire string from <path> and <folder> contains just <"">. For now I am sticking with my array.

Quote:
Originally Posted by bakunin
Then you use two sed-invocations to add double quotes. Why don't you add them already in the echo-statements? It is possible to escape characters and use them literally instead of their special meaning to the shell:
I guess at some point I got too carried away with sed and didn't even thing to escape the quotes. Thanks, this makes it much cleaner.


Thanks a million for all the help. You made my day, I hope I can repay the favor to someone on this forum some day. Smilie
 

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