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rated 0 times [  2] [ 0]  / answers: 1 / hits: 5835  / 1 Year ago, tue, february 14, 2023, 10:39:20

I'm trying to find the number of dirs and files in a given dir. I'm running my bash script like this:



ARCHIVE=/path/to/archive ./myScript


in my script I am doing this:



#find the number of non-empty directories in the given dir 

dirs=$(find $ARCHIVE -mindepth 1 -maxdepth 1 -not -empty -type d | wc -l)

#find the number of files in the given dir

msgs=$(find $ARCHIVE -type f | wc -l)



echo "Number of directories: $dirs"

echo "Total number of messages: $msgs"


This works great when I am running the script on a subset of the data I'm looking at, which is located in a dir at the same level as the script. However, the actual data is in someone else's directory and when I run it with the ARCHIVE variable set to that location, both values return as 0. I have a similar script that I use as well, and the find command there does not work on the second directory either. Strangely enough, I use some egrep commands and they work just fine for both.



Why can I not use find in this manner?


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 Answers
6

Try passing the directory you want to search as a parameter to the bash script:



#!/usr/bin/env bash



# First argument to script shall be directory in which to search

ARCHIVE=$1 



#find the number of non-empty directories in the given dir 

dirs=$(find "$ARCHIVE" -mindepth 1 -maxdepth 1 -not -empty -type d | wc -l)

#find the number of files in the given dir

msgs=$(find "$ARCHIVE" -type f | wc -l)



echo "Number of directories: $dirs"

echo "Total number of messages: $msgs"


Running the script, called dirfiles, on my home directory:



$ ./dirfiles ~

Number of directories: 27

Total number of messages: 8703


And on /usr/lib:



$ ./dirfiles /usr/lib

Number of directories: 161

Total number of messages: 9630


Furthermore, find offers three ways to resolve symbolic links:




  • -P: don't follow symbolic links

  • -L: follow symbolic links

  • -H: don't follow symbolic links except when processing command line arguments.



If you don't want to follow symlinks, but $ARCHIVE happens to be one, then perhaps -H is the way to go.


[#28993] Wednesday, February 15, 2023, 1 Year  [reply] [flag answer]
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