Find all “*.wav” files that created yesterday on linux host with python.

[pydeev]

There is so many .wav files and create alot of these files everyday on Linux Host. I want to find all wav files that created yesterday ( a day ago when script run )on subdirectories and convert them to mp3 format with python script. I run os.walk ( path ) for finding '.wav' files but can not check that they was create yesterday.

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for root, dir, files in os.walk(path):     for file in files:         if file.endswith('.wav'):             wav = root + '/' + str(file)             cmd = 'lame --preset insane %s' % wav             subprocess.call(cmd, shell=True)

Your answers can help alot.

Thanks in advance

[Larz60+]

This will walk from starting path:

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from pathlib import Path     def walk_dir(starting_dir):     flist = []     for path in Path(starting_dir).iterdir():         if path.is_file():             if path.suffix == '.wav':                 print(path)                 flist.append(path)         elif path.is_dir():             walk_dir(path)       for file in flist:         print(file)     if __name__ == '__main__':     start_path = '/home/'     walk_dir(start_path)

[snippsat]

Use os.stat() to check when files is created.
Make a yesterday date object and compare.
Example.

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from datetime import date, timedelta from pathlib import Path   path = Path('some.wav') yesterday = date.today() - timedelta(days=1) timestamp = date.fromtimestamp(path.stat().st_mtime) if yesterday == timestamp:     print('Do something file is from yesterday')

[pydeev]

tnx Larz60+ for your reply
i have a question , that my files are so much ( about 5-6 thousand of WAV files and about 25-30 GB ) . because of that if i save that file to a list , is there inefficient for using list?
sorry for my bad English

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Use os.stat() to check when files is created. Make a yesterday date object and compare. Example.

1	from datetime import date, timedelta from pathlib import Path path = Path('some.wav') yesterday = date.today() - timedelta(days=1) timestamp = date.fromtimestamp(path.stat().st_mtime) if yesterday == timestamp: print('Do something file is from yesterday')

Thanks snippsat
i have some randome folder on my path ( like /archive_sounds/Trunk/* and within this folders ( * ) , there is WAV files. by this how can i use path for finding these files.

thanks so much

[Gribouillis]

is there inefficient for using list?

Appending 6000 times to a list will cost you a fraction of a millisecond for the whole process. This is negligible as compared to the time needed to scan the file system with stat calls.

[snippsat]

i have some randome folder on my path ( like /archive_sounds/Trunk/* and within this folders ( * ) , there is WAV files. by this how can i use path for finding these files.

You do it bye combine code you have gotten til now.
Example mine and @Larz60+,can also trow in subprocess call as you have in first code.
Here doing all in loop,so not saving to a list.

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from pathlib import Path from datetime import date, timedelta import subprocess from os import fspath   def walk_dir(starting_dir):     #flist = []     yesterday = date.today() - timedelta(days=66)     for path in Path(starting_dir).iterdir():         timestamp = date.fromtimestamp(path.stat().st_mtime)         if path.is_file() and yesterday == timestamp:             print(fspath(path))             out = subprocess.run(['ls', '-l', fspath(path)], capture_output=True)             print(out.stdout.decode())             #print(path)           if path.is_dir():             walk_dir(path)   if __name__ == '__main__':     start_path = r'E:\div_code\sound_folder'     walk_dir(start_path)

Output:
E:\div_code\sound_folder
λ python find_files.py
E:\div_code\sound_folder\hello_vs.txt
-rw-r--r-- 1 Tom 197121 5 Oct 27 01:49 E:\div_code\sound_folder\hello_vs.txt

E:\div_code\sound_folder\Ny mappe\in_folder.txt
-rw-r--r-- 1 Tom 197121 15 Oct 27 01:58 E:\div_code\sound_folder\Ny mappe\in_folder.txt

So here will find all files .txt could of course be .wav 66-days old in sound_folder*(also files in all sub-folders).
If files is in this case are 66-days old run:

1	ls -l filename   # Displays size, data of the specified file

[pydeev]

thanks every one
finally i resolve that

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def walk_dir(starting_dir):     flist = []     yesterday = datetime.date.today() - datetime.timedelta(days=0)     for path in pathlib.Path(starting_dir).iterdir():         timestamp = datetime.date.fromtimestamp(path.stat().st_mtime)         if path.is_dir() and yesterday == timestamp:             print(" We Are Here : ", path)             for test in pathlib.Path(path).iterdir():                 print("hiiiiiiiiiiiiiiiiiiiiiiiiiii", test)                 if test.suffix == '.wav':                     flist.append(test)       print(flist)     for file in flist:         subprocess.call('lame --preset insane %s' % file, shell=True)     for pathh in pathlib.Path(starting_dir).iterdir():         timestampp = datetime.date.fromtimestamp(pathh.stat().st_mtime)         if pathh.is_dir() and yesterday == timestampp:             for tes in pathlib.Path(pathh).iterdir():                 print("We Are Here Again : ", pathh)                 if str(pathh) == str(TEST_DIR + yesterdays.strftime('%Y-%m-%d')):                     break                 if tes.suffix == '.mp3':                     print("This Is MP3 File : ", tes)                     # t = str(pathh.abspath(os.path.join(starting_dir, tes)))                     mine = os.path.abspath(tes)                     shutil.move(mine, TEST_DIR + yesterdays.strftime('%Y-%m-%d') + '/')