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Once you get into advanced/optimized scripts, functions, or cli usage, you will use the sort command alot. The options are difficult to master/memorize however, and when you use sort commands as much as I do (some examples below), it's useful to have the help available with a simple alias. I love this alias as I never seem to remember all the options for sort, and I use sort like crazy (much better than uniq for example).
# Sorts by file permissions
find . -maxdepth 1 -printf '%.5m %10M %p\n' | sort -k1 -r -g -bS 20%
00761 drwxrw---x ./tmp
00755 drwxr-xr-x .
00701 drwx-----x ./askapache-m
00644 -rw-r--r-- ./.htaccess
# Shows uniq history fast
history 1000 | sed 's/^[0-9 ]*//' | sort -fubdS 50%
exec bash -lxv
export TERM=putty-256color
Taken from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
Works with files containing spaces and for very large directories.
This provides a way to sort output based on the length of the line, so that shorter lines appear before longer lines. It's an addon to the sort that I've wanted for years, sometimes it's very useful. Taken from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
I've wanted this for a long time, finally just sat down and came up with it. This shows you the sorted output of ps in a pretty format perfect for cron or startup scripts. You can sort by changing the k -vsz to k -pmem for example to sort by memory instead.
If you want a function, here's one from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
aa_top_ps(){ local T N=${1:-10};T=${2:-vsz}; ps wwo pid,user,group,vsize:8,size:8,sz:6,rss:6,pmem:7,pcpu:7,time:7,wchan,sched=,stat,flags,comm,args k -${T} -A|sed -u "/^ *PID/d;${N}q"; }
Gives you a list for all installed chrome (chromium) extensions with URL to the page of the extension.
With this you can easy add a new Bookmark folder called "extensions" add every URL to that folder, so it will be synced and you can access the names from every computer you are logged in.
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Only tested with chromium, for chrome you maybe have to change the find $PATH.
Thanks for the submit! My alternative produces summaries only for directories. The original post additionally lists all files in the current directory. Sometimes the files, they just clutter up the output. Once the big directory is located, *then* worry about which file(s) are consuming so much space.
sorts the files by integer megabytes, which should be enough to (interactively) find the space wasters. Now you can
dush
for the above output,
dush -n 3
for only the 3 biggest files and so on. It's always a good idea to have this line in your .profile or .bashrc
This is easy to type if you are looking for a few (hundred) "missing" megabytes (and don't mind the occasional K slipping in)...
A variation without false positives and also finding gigabytes (but - depending on your keyboard setup - more painful to type):
du -hs *|grep -P '^(\d|,)+(M|G)'|sort -n
(NOTE: you might want to replace the ',' according to your locale!)
Don't forget that you can
modify the globbing as needed! (e.g. '.[^\.]* *' to include hidden files and directories (w/ bash))
in its core similar to:
This makes an alias for a command named 'busy'. The 'busy' command opens a random file in /usr/include to a random line with vim. Drop this in your .bash_aliases and make sure that file is initialized in your .bashrc.
Just refining last proposal for this check, showing awk power to make more complex math (instead /1024/1024, 2^20). We don't need declare variable before run lsof, because $(command) returns his output. Also, awk can perform filtering by regexp instead to call grep. I changed the 0.0000xxxx messy output, with a more readable form purging all fractional numbers and files less than 1 MB.
dpigs is in the package debian-goodies (debian/ubuntu)
Use the hold space to preserve lines until data is needed.
List packages and their disk usage in decreasing order. This uses the "Installed-Size" from the package metadata. It may differ from the actual used space, because e.g. data files (think of databases) or log files may take additional space.
The sort utility is well used, but sometimes you want a little chaos. This will randomize the lines of a text file.
BTW, on OS X there is no
| sort -R
option! There is also no
| shuf
These are only in the newer GNU core...
This is also faster than the alternate of:
| awk 'BEGIN { srand() } { print rand() "\t" $0 }' | sort -n | cut -f2-
A little bit smaller, faster and should handle files with special characters in the name.