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I used to do this sorting with:
sort file.txt | uniq -c | sort -nr
But this would cause the line (2nd column) to be sorted in descending (reverse) order as well sa the 1st column. So this will ensure the 2nd column is in ascending alphabetical order.
This is a modified version of the OP, wrapped into a bash function.
This version handles newlines and other whitespace correctly, the original has problems with the thankfully rare case of newlines in the file names.
It also allows checking an arbitrary number of directories against each other, which is nice when the directories that you think might have duplicates don't have a convenient common ancestor directory.
Kind of fun if you're that was inclined. I figured most of my commands start with s. sudo, screen, ssh etc. This script tells me what else they start with.
# find assumes email files start with a number 1-9
# sed joins the lines starting with " " to the previous line
# gawk print the received and from lines
# sort according to the second field (received+from)
# uniq print the duplicated filename
# a message is viewed as duplicate if it is received at the same time as another message, and from the same person.
The command was intended to be run under cron. If run in a terminal, mutt can be used:
mutt -e "push otD~=xq" -f $folder
You can simply run "largest", and list the top 10 files/directories in ./, or you can pass two parameters, the first being the directory, the 2nd being the limit of files to display.
Best off putting this in your bashrc or bash_profile file
List of commands you use most often suppressing sudo
A lot of files in one dir is not so cool for filesystem.
Lists the size in human readable form and lists the top 25 biggest directories/files
count & sort one field of the log files , such as nginx/apache access log files .
This, like the other commands listed here, displays installed arch packages. Unlike the other ones this also displays the short description so you can see what that package does without having to go to google. It also shows the largest packages on top. You can optionally pipe this through head to display an arbitrary number of the largest packages installed (e.g. ... | head -30 # for the largest 30 packages installed)
find files recursively from the current directory, and list the extensions of files uniquely
#_connects src_IP dst_IP When_It_Happened_Secs
Random choose numbers from 1 to 100 with 5 seconds interval without duplicates.
Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together.