Linux scripting

redone-22 · 08-19-2015, 11:48 AM

hey, i am new in the world of linux and i search for some one who can help me to do this :

In the linux file system, there are established directories (folders) such as / etc, / home, ... Create a script that summarizes the contents of a folder, which passed as a parameter to the script: specify how many subdirectories are present, and how many files. Moreover, you also how much space the map packs in total. The script may work for one specified folder, but also for several specified folders. Both absolute and relative pads names can be entered. Make sure the specified folder exists.

thanks

HMW · 08-19-2015, 12:03 PM

Hi and welcome!

Please read the LQ rules:
http://www.linuxquestions.org/linux/rules.html

Quote:

Originally Posted by LinuxQuestions

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

redone-22 · 08-19-2015, 12:06 PM

it's not a homework. that is just an exercise.

HMW · 08-19-2015, 12:10 PM

Quote:

Originally Posted by redone-22

it's not a homework. that is just an exercise.

Ok. Then what have you done this far?

Also, check out: http://tldp.org/LDP/abs/html/

And there are tons of information about scripting online.

Nobody is going to write that script for you, but some (like me) would be glad to help with a specific question.

Best regards,
HMW

redone-22 · 08-19-2015, 12:11 PM

i would like to know if i have to work with ls to get info about the directory or use a more efficient command

rtmistler · 08-19-2015, 01:35 PM

Quote:

Originally Posted by redone-22

i would like to know if i have to work with ls to get info about the directory or use a more efficient command

Check variations on the ls command. Also see df and du commands for some of the stuff you're asking.

Write a script, I always say, "Whatever you can write in a command line, you can script." So do that, or do some command line attempts, research some of the recommended commands and ask more detailed questions. All that you've brought up thus far can be dealt with using the commands I've mentioned. Or at least I feel so.

HMW · 08-19-2015, 01:57 PM

Here's a suggestion; since you are new to scripting, why don't you break that excercise down into smaller parts.

For example start out with this:
Write a script that takes the name (and path) of a directory as argument.
If the directory exists, exit with 0 (success), otherwise exit with a value > 0.

pan64 · 08-19-2015, 02:25 PM

I would also suggest you to find a way to implement it, post it and we can discuss it. Probably you won't find the most efficient way at first but we are here to help you to improve your solution.

redone-22 · 08-19-2015, 04:37 PM

i have find the way to have a total of every subdirectory in the diretory with:
du -ch --max-depth=1 | wc -l
but now i want to have the total of the files in the directory only. how can i do

HMW · 08-20-2015, 03:20 AM

Quote:

Originally Posted by redone-22

but now i want to have the total of the files in the directory only. how can i do

Try this:

Code:

find . -maxdepth 1 -type f -exec du -ch {} + | tail  -1

Best regards,
HMW

redone-22 · 08-20-2015, 05:51 AM

thanks hmw.
i will put that in a function.
but now i want to use a case.
when i use my script with one parameter it will give us only the directories in the directory.
but when i add the "-f" it will also give us the files of the directory. i am thinking about the use of BOOLEAN but i am not sure.

Habitual · 08-20-2015, 07:52 AM

How about something like this output?

Code:

4K	./Desktop
300K	./Pycode
14.4M	./svn
29.2M	./work
51M	./Bin
163.2M	./Pictures
9.4G	./Documents
10.1G	./VboxVMs
25.4G	./Downloads
Total: 43.3G
jj@my-kungfu ~ $ cd Pictures/
jj@my-kungfu ~/Pictures $ /home/jj/Bin/bdu.sh
4K	./arch.gif
4K	./bash.jpg
4K	./bash.png
4K	./dork_32x32.jpg
4K	./dork_32x32.png
4K	./dork_64x64.jpg
4K	./dork.jpg
4K	./Geeko_head_simple.png
4K	./iCloud_thumbnail.jpg
4K	./lizard2.png
4K	./me.png
4K	./slackware.jpg
4K	./terminal.jpg
4K	./yad.png
8K	./Bsd_daemon.jpg
8K	./favicon.ico
8K	./LittleJohn2.jpg
8K	./PythonIcon80x80.png
8K	./todofavicon.ico
16K	./dork.png
20K	./supergh0d.jpg
24K	./shonuff.jpg
24K	./That
28K	./Mozilla_Thunderbird_logo.png
36K	./00_hoXU4st_QRq6.jpg
36K	./space.gif
44K	./geeko-button-bling.svg
48K	./crypto.jpg
52K	./dork_256x256.png
60K	./Untitled.jpg
64K	./blackcat.jpg
84K	./unix-linux-1280x1024.jpg
92K	./todotxt_logo_2011.png
104K	./cityoflights.jpg
104K	./fantasia-original.jpg
124K	./Thunder
156K	./space.jpg
184K	./lavoult.png
184K	./vim_background.png
200K	./make_it_stop.png
204K	./Cool-Minions-HD-Wallpaper-8-For-Desktop-Background.jpg
208K	./Debian
208K	./zakim_bridge2.JPG
220K	./Cool-Minions-HD-Wallpaper-20-For-Desktop-Background.jpg
244K	./opensuse1600_1200.jpg
316K	./infinity_world-HD.jpg
352K	./IMG_0701.jpg
364K	./Katy-Perry-Dark_Horse-WideWallpapersHD.jpg
388K	./FireDragon.jpg
396K	./IMG_7030.jpg
492K	./dr_evil.jpg
552K	./BS_Awesomeness.jpg
568K	./screenshots
652K	./Workspace
656K	./Workspace
660K	./1.jpg
768K	./gcar.jpg
828K	./FluxCapacitor.jpg
2.1M	./2.slackware.jpg
2.4M	./The_Tidal_Influences.jpg
2.4M	./slack
2.5M	./June
2.9M	./059.JPG
3.2M	./b-ball.bmp
3.8M	./Wallbase
6.4M	./wallpaper_ratchet_deadlocked_01_1600.bmp
46.3M	./wallpapers
90M	./Recovered
Total: 163.2M

The script must be run in the directory you want the listing for.

redone-22 · 08-20-2015, 08:31 AM

hello habitual
your script is to dificult i need something easy as du and find commande to have the number of files and the number of directories in the directory.
for the total number of dir i have that : find -/$1/* -maxdepth 0 -type d | wc -l
for the total number of file i have that : find -/$1/* -maxdepth 1 -type d -exec du -ch {} + | tail -l | wc -l
but for the file it give me more file that i have when i use the commande ls, so i dont understand from where the files come????

i ask me also if i can have a general code with the dir the file and size of the directory and substract from this code each part separately?

HMW · 08-20-2015, 08:47 AM

Quote:

Originally Posted by redone-22

for the total number of file i have that : find -/$1/* -maxdepth 1 -type d -exec du -ch {} + | tail -l | wc -l

Wait, just wait a minute... have you tried this command:

Code:

find -/$1/* -maxdepth 1 -type d -exec du -ch {} + | tail -l | wc -l

If so, what happened, exactly, when you did?

Best regards,
HMW

redone-22 · 08-20-2015, 09:37 AM

it gives me 4