find . -print | awk -F . '{print $NF}' | sort | uniq -c | sort -n
( awk -F . '{print $NF}' leaves only file extension. )
For example, libssh-0.9.4 project:
...
1 yml
2 md
2 png
2 sh
6 in
8 svg
9 pub
12 dox
14 symbols
14 txt
27 cmake
65 h
174 c
Would work for a current directory only. Like, libssh-0.9.4/tests:
% file -b * | sort | uniq -c | sort -n
1 Python script, ASCII text executable
4 ASCII text
9 directory
19 C source, ASCII text
I'm using the -b option of the file here:
-b, --brief
Do not prepend filenames to output lines (brief mode).
Now for all files in tree:
% find . -type f -exec file -b {} \; | sort | uniq -c | sort -n
1 ASCII text, with no line terminators
1 C++ source, ASCII text
1 C source, ASCII text, with very long lines
1 data
1 empty
1 HTML document, ASCII text
1 HTML document, UTF-8 Unicode text
1 JSON data
1 OpenSSH DSA public key
1 OpenSSH ED25519 public key
1 OpenSSH private key
1 OpenSSH RSA1 private key, version 1.1
1 PEM DSA private key
1 Python script, ASCII text executable
1 ReStructuredText file, UTF-8 Unicode text
1 UTF-8 Unicode text
2 ASCII text, with very long lines
2 OpenSSH ECDSA public key
2 PEM EC private key
2 PNG image data, 25 x 25, 8-bit/color RGBA, non-interlaced
3 OpenSSH RSA public key
3 ReStructuredText file, ASCII text
4 PEM RSA private key
8 SVG Scalable Vector Graphics image
80 ASCII text
245 C source, ASCII text
For libssh-0.9.4 again:
% find . -type f -exec stat {} \;
File: ./src/dh_key.c
Size: 10023 Blocks: 24 IO Block: 4096 regular file
Device: fd00h/64768d Inode: 31855060 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 1000/ i) Gid: ( 1000/ i)
Access: 2021-12-07 12:31:34.074679564 +0200
Modify: 2020-04-06 12:36:35.000000000 +0300
Change: 2020-12-18 20:19:06.156283089 +0200
Birth: -
File: ./src/knownhosts.c
Size: 36939 Blocks: 80 IO Block: 4096 regular file
Device: fd00h/64768d Inode: 31855074 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 1000/ i) Gid: ( 1000/ i)
Access: 2021-12-07 12:31:34.090679832 +0200
Modify: 2020-01-27 17:45:32.000000000 +0200
Change: 2020-12-18 20:19:06.188283745 +0200
Birth: -
Let's narrow this info to 'Modify' field only:
% find . -type f -exec stat {} \; | grep Modify
Modify: 2020-01-27 17:45:32.000000000 +0200
Modify: 2020-03-27 14:13:36.000000000 +0200
Modify: 2020-01-27 17:45:32.000000000 +0200
Modify: 2020-01-27 17:45:32.000000000 +0200
Modify: 2020-01-27 17:45:32.000000000 +0200
Pull only date from these strings:
% find . -type f -exec stat {} \; | grep Modify | cut -d ' ' -f 2
2020-01-27
2020-01-27
2020-01-27
2020-01-27
2020-04-09
2020-04-09
Collect statistics. What days are most active:
% find . -type f -exec stat {} \; | grep Modify | cut -d ' ' -f 2 | sort | uniq -c | sort -n
1 2018-12-07
2 2019-01-31
2 2020-03-30
3 2009-06-15
3 2013-02-07
7 2020-03-27
8 2016-02-15
8 2018-09-10
9 2020-04-06
22 2018-10-19
68 2020-04-09
234 2020-01-27
Narrow to pure C files using -name or -iname:
% find . -name '*.c' -type f -exec stat {} \; | grep Modify | cut -d ' ' -f 2 | sort | uniq -c | sort -n
1 2009-06-15
1 2013-02-07
1 2018-09-10
1 2018-12-07
4 2018-10-19
5 2016-02-15
6 2020-03-27
8 2020-04-06
34 2020-04-09
113 2020-01-27
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