bash script that printout the full paths of all the files under the directory

Vishnu Vijayan · 10-08-2015, 11:28 AM

Write a bash script that printout the full paths of all the files under the directory of interest and its sub-directories that match certain pattern

- Take two inputs from the user: one is the full path to the directory and the other is the pattern of interest

For example,
>> myscript.sh /home/student/master_project/test_directory comp
Your program "myscript.sh" will need to look into "/home/student/master_project/test_directory" and print out all the files that has "comp" in it.

The challenge is you do not know how many levels of subdirectories are there, so you need to use suitable loop control to cover all sub-directories.

schneidz · 10-08-2015, 11:32 AM

what have you tried so far and where are you stuck.
did your attempt print out an error message. please provide your source code so someone would be able to help correct your mistake.

Vishnu Vijayan · 10-08-2015, 11:37 AM

Quote:

Originally Posted by schneidz

what have you tried so far and where are you stuck.
did your attempt print out an error message. please provide your source code so someone would be able to help correct your mistake.

Its for my sister. She is not well. She wants to submit it as an assignment. I dont know Linux. So i thought someone may help me here.

HMW · 10-08-2015, 11:41 AM

Hello and welcome!

Please take a moment to read through the LQ rules:

Quote:

Do not post homework assignments verbatim. We're happy to assist if you have specific questions or have hit a stumbling point, however. Let us know what you've already tried and what references you have used (including class notes, books, and searches) and we'll do our best to help. Keep in mind that your instructor might also be an LQ member.

Best regards,
HMW

HMW · 10-08-2015, 11:45 AM

Quote:

Originally Posted by Vishnu Vijayan

Its for my sister. She is not well.

If your sister is so unwell that she cannot use a computer on her own, I fail to see how she could possibly manage a class in GNU/Linux.

My condolences. I really hope she feels better soon. When she does, she is more than welcome to post her efforts here so that I and others will be able to help her out if needed.

Best regards,
HMW

TB0ne · 10-08-2015, 01:20 PM

Quote:

Originally Posted by Vishnu Vijayan

Its for my sister. She is not well. She wants to submit it as an assignment. I dont know Linux. So i thought someone may help me here.

Sorry, but this makes very little sense.

If your sister is so very ill that she cannot even type, why is she in school and/or expected to turn in assignments? If she just has a minor illness, then she is PERFECTLY able to post a question herself, or at the very least, give you what she has done so far, towards 'her' assignment. It seems much more likely that this is YOUR homework, and you're playing a sympathy card, trying to get someone to hand you a script.

HMW · 10-09-2015, 01:58 AM

Well... anyway. When your sister gets better, tell her that this:

Quote:

Originally Posted by Vishnu Vijayan

The challenge is you do not know how many levels of subdirectories are there, so you need to use suitable loop control to cover all sub-directories.

Is utter nonsense.

In directory tmpdir I have a couple of files and a directory. The files look like this:

Code:

tmpdir$ cat afile.txt foo 
zumzumzum...
foo bar comp

The directory (bar) contains a file (sometext.txt) with this content:

Code:

tmpdir$ cat bar/sometext.txt 
comp
ladadi ladada

As you can see, I have the keyword "comp" in some of the files and directories in my tmpdir directory.

So, let us try a script as specified in your first post:

Code:

./myscript.sh /home/HMW/LQ/tmpdir/ comp
/home/HMW/LQ/tmpdir/foo
/home/HMW/LQ/tmpdir/bar/sometext.txt

Good. The script found all the files containing the keyword "comp" in tmpdir and its sub-directories. For this, I used not a single loop, and the script itself is three (3) lines. If you skip the

Code:

exit 0

It can be two (2) lines. But I recommend that you (oh, sorry, your sister) makes it mandatory to always include a proper exit status in her scripts. It is bad practice not to.

So, on second thought, when your sister gets better, tell her to go find a PROPER course in GNU/Linux, because this one seems pretty awful.

Best regards,
HMW