Commands by lme

Commands by lme (5)

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For finding out if something is listening on a port and if so what the daemon is.

See what's listening on your IPv4 ports on FreeBSD. Show Sample Output

sockstat -4l

lme · 2010-08-20 14:04:31 3

Disable all iptables rules without disconnecting yourself

This turns your iptables packet filter to a "Allow any from any to any" filter, so you can rule out any filtering issues when you have a problem to enable a connection from or to your host. To re-enable it, run /etc/init.d/iptables restart
This is sample output - yours may be different.
0

iptables -F && iptables -X && iptables -P INPUT ACCEPT && iptables -OUTPUT ACCEPT

lme · 2009-03-27 15:03:54 5
reverse-print contents of a file
This is sample output - yours may be different.
-6

nawk '{line[NR]=$0} END{for (; NR>=1; NR--){print line[NR]}}' FILENAME

lme · 2009-03-20 12:43:31 8
shell alternative to 'basename'
This is sample output - yours may be different.
0

echo ${file##*/}

lme · 2009-03-20 12:41:45 38
Sort files by size
This is sample output - yours may be different.
5

ls -l | sort -nk5

lme · 2009-03-20 12:28:34 39

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See all the commits for which searchstring appear in the git diff

mp3 streaming

Undo several commits by committing an inverse patch.

Use this to make a new commit that "softly" reverts a branch to some commit (i.e. squashes the history into an inverse patch). You can review the changes first by doing the diff alone.

find the biggest files recursively, no matter how many

This command will find the biggest files recursively under a certain directory, no matter if they are too many. If you try the regular commands ("find -type f -exec ls -laSr {} +" or "find -type f -print0 | xargs -0 ls -laSr") the sorting won't be correct because of command line arguments limit. This command won't use command line arguments to sort the files and will display the sorted list correctly.

To create files with specific permission:

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Most simple way to get a list of open ports

Open Port Check

also could specify port number: lsof -ni TCP:80

Get memory total from /proc/meminfo in Gigs

download 10 random wallpapers from google

you may want &hl=en for &hl=es for the language you may want imgsz=xxlarge for imgsz=large or whatever filter you may want q=apples or whatever

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Commands by lme (5)

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