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Upload - rsync using key pair

Connect EC2 server with public keys "/root/.ec2/id_rsa-gsg-keypair" or "/root/.ec2/keypair.pem"
This is sample output - yours may be different.
-2

rsync -avvvz -e "ssh -i /root/.ec2/id_rsa-gsg-keypair" --archive --progress /root/.ec2/id_rsa-gsg-keypair root@ec2-75-101-212-113.compute-1.amazonaws.com:/root

svnlabs · 2010-01-22 16:53:42 4
Project Zipped

Project Zipped
This is sample output - yours may be different.
-5

zip -r -9 /var/www/html/project.zip /var/www/html/project

svnlabs · 2010-01-22 16:51:11 3
Get Memeory Info

Get Memeory Info
This is sample output - yours may be different.
-1

cat /proc/meminfo

svnlabs · 2010-01-22 16:48:03 3
Check RAM size

Check RAM size
This is sample output - yours may be different.
7

free -mto

svnlabs · 2010-01-22 16:46:50 4
Insert the last argument of the previous command
This is sample output - yours may be different.
12

<ALT> .

new_user · 2010-01-22 15:06:26 10
Insert the last argument of the previous command
This is sample output - yours may be different.
24

<ESC> .

wincus · 2010-01-22 14:27:44 19
Extract all 7zip files in current directory taking filename spaces into account
This is sample output - yours may be different.
-7

savesIFS=$IFS;IFS=$(echo -en "\n\b"); for items in `ls *.7z`; do 7zr e $items ; done; IFS=$saveIFS

BCK · 2010-01-22 14:16:09 7
Find unused IPs on a given subnet

Somewhat shorter version. Show Sample Output
This is sample output - yours may be different.
```
...
192.168.0.226
192.168.0.227
...
```
4

fping -r1 -g <subnet> 2> /dev/null | grep unreachable | cut -f1 -d' '

unixmonkey7953 · 2010-01-22 09:07:04 3
Find unused IPs on a given subnet
This is sample output - yours may be different.
1

nmap -sP <subnet>.* | egrep -o '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' > results.txt ; for IP in {1..254} ; do echo "<subnet>.${IP}" ; done >> results.txt ; cat results.txt | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | uniq -u

bortoelnino · 2010-01-22 00:26:42 4
Linux zsh one-liner to Determine which processes are using the most swap space currently

Col 1 is swapped sum in kb Col 2 is pid of process Col 3 is command that was issued Show Sample Output
This is sample output - yours may be different.
```
 4428 9187 python/usr/share/system-config-printer/applet.py
 2012 9163 gnome-panel
 1516 9127 /usr/lib/gnome-settings-daemon/gnome-settings-daemon
 1408 18899 /usr/lib/gvfs/gvfsd-smb--spawner:1.9/org/gtk/gvfs/exec_spaw/4
 1040 1681 gnome-terminal
```
0

for i in $(ps -ef | awk '{print $2}') ; { swp=$( awk '/Swap/{sum+=$2} END {print sum}' /proc/$i/smaps ); if [[ -n $swp && 0 != $swp ]] ; then echo -n "\n $swp $i "; cat /proc/$i/cmdline ; fi; } | sort -nr

cbrinker · 2010-01-22 00:09:46 11
Create unique email addresses directly from the US census site*Full command in comments

** Replace the ... in URLS with: www.census.gov/genealogy/www/data/1990surnames Couldn't fit in 256 Created on Ubuntu 9.10 but nothing out of the ordinary, should work anywhere with a little tweaking. 5163 is the number of unique first names you get when combine the male and female first name files from. http://www.census.gov/genealogy/www/data/1990surnames/names_files.html Show Sample Output
This is sample output - yours may be different.
```
stasia.palmer@test.domain
mozell.sybounheuan@test.domain
yuki.nypaver@test.domain
annamae.tilbury@test.domain
jaimee.warfield@test.domain
cassidy.mchugh@test.domain
daniele.makey@test.domain
ivelisse.besancon@test.domain
marylin.kocher@test.domain
```
0

paste -d "." <(curl http://.../dist.female.first http://.../dist.male.first | cut -d " " -f 1 | sort -uR) <(curl http://..../dist.all.last | cut -d " " -f 1 | sort -R | head -5163) | tr "[:upper:]" "[:lower:]" | sed 's/$/@test.domain/g'

connorsy · 2010-01-21 19:52:28 3
delete duplicate lines from a file and keep the order of the other lines

i wanted to delete all duplicate lines from .bash_history and keep the order of the other lines. the command cat's the file and adds line numbers, then sorts by the second column. afterwards uniq omits repeated lines, but skips the first field (the line number). then it sorts by the line numbers and at the end cuts the numbers off.
This is sample output - yours may be different.
4

cat -n <file> | sort -k 2 | uniq -f 1 | sort -n | cut -f 2-

fpunktk · 2010-01-21 18:55:58 11
show tcp syn packets on all network interfaces
This is sample output - yours may be different.
0

tcpdump -i any -n tcp[13] == 2

wincus · 2010-01-21 14:18:16 3
List your Boxee queue

Might be able to do it in less steps with xmlstarlet, although whether that would end up being shorter overall I don't know - xmlstarlet syntax confuses the heck out of me. Prompts for your password, or if you're a bit mental you can add your password into the command itself in the format "-u user:password". Show Sample Output
This is sample output - yours may be different.
```
queued  Youtube video
queued  TEDTalks : The amazing intelligence of crows - Joshua Klein
queued  The Fresh Prince of the Dark Side Pranks Christian TV
queued  Grand Theft Auto: Chinatown Wars
queued  Flight of the Conchords Ep 6 Bret, You've got it Going On
```
0

curl -u <username> http://app.boxee.tv/api/get_queue | xml2 | grep /boxeefeed/message/description | awk -F= '{print $2}'

Strawp · 2010-01-20 16:17:19 547
Play back shell session recorded using the

This command will play back each keystroke in a session log recorded using the script command. You'll need to replace the ^[ ^G and ^M characters with CTRL-[, CTRL-G and CTRL-M. To do this you need to press CTRL-V CTRL-[ or CTRL-V CTRL-G or CTRL-V CTRL-M. You can adjust the playback typing speed by modifying the sleep. If you're not bothered about seeing each keypress then you could just use: cat session.log Show Sample Output
This is sample output - yours may be different.
```
$ script session.log
Script started, file is session.log
$ pwd
/home/jon
$ exit
Script done, file is session.log


$ (IFS=; sed 's/^[]0;[^^G]*^G/^M/g' session.log | while read -n 1 ITEM; do [ "$ITEM" = "^M" ] && ITEM=$'\n'; echo -ne "$ITEM"; sleep 0.05; done; echo)
Script started on Wed 20 Jan 2010 15:56:36 GMT
$ exit
Script done on Wed 20 Jan 2010 15:56:45 GMT
```
0

(IFS=; sed 's/^[]0;[^^G]*^G/^M/g' <SessionLog> | while read -n 1 ITEM; do [ "$ITEM" = "^M" ] && ITEM=$'\n'; echo -ne "$ITEM"; sleep 0.05; done; echo)

jgc · 2010-01-20 16:11:32 5
Print the contents of $VARIABLE, six words at a time

Print out the contents of $VARIABLE, six words per line, ignoring any single or double quotes in the text. Useful when $VARIABLE contains a sentence that changes periodically, and may or may not contain quoted text.
This is sample output - yours may be different.
1

echo $VARIABLE | xargs -d'\40' -n 6 echo

SuperFly · 2010-01-20 15:12:53 4
Exclude .svn, .git and other VCS junk for a pristine tarball

~$ tar --version tar (GNU tar) 1.20
This is sample output - yours may be different.
29

tar --exclude-vcs -cf src.tar src/

hendry · 2010-01-20 10:16:17 14
remove at jobs

Removes all the at shedules jobs
This is sample output - yours may be different.
0

atrm $(atq|cut -f1)

frans · 2010-01-20 08:04:35 6

Credit goes to "eightmillion" Show Sample Output

-5

removedir(){ read -p "Delete the current directory $PWD ? " human;if [ "$human" = "yes" ]; then [ -z "${PWD##*/}" ] && { echo "$PWD not set" >&2;return 1;}; rm -Rf ../"${PWD##*/}"/ && cd ..; else echo "I'm watching you" | pv -qL 10; fi; }

oshazard · 2010-01-20 08:01:21 9

Download full FLAC albums from archive.org

The only zipped version of an album available for download is the lossy mp3 version. To download lossless files, because of their size, you must download them individually. This command scrapes the page for all the FLAC (or also SHN) files.
This is sample output - yours may be different.
1

wget -rc -A.flac --tries=5 http://archive.org/the/url/of/the/album

meunierd · 2010-01-20 07:36:25 4
Merge - Concate MP3 files

That way, you can make a mix on the fly with the mp3 files in the current directory to make a bunch mp3 file.
This is sample output - yours may be different.
0

sox *.mp3 -t wavpcm - | lame - > bunch.mp3

sputnick · 2010-01-20 01:27:12 2
renice by name
This is sample output - yours may be different.
4

renice +5 -p $(pidof <process name>)

0x2142 · 2010-01-19 22:16:24 3
transfer files locally to be sure that file permissions are kept correctly showing progress

This may seem like a long command, but it is great for making sure all file permissions are kept in tact. What it is doing is streaming the files in a sub-shell and then untarring them in the target directory. Please note that the -z command should not be used for local files and no perfomance increase will be visible as overhead processing (CPU) will be evident, and will slow down the copy. You also may keep simple with, but you don't have the progress info: cp -rpf /some/directory /other/path Show Sample Output
This is sample output - yours may be different.
```
7MB 0:00:01 [59.7MB/s] [============>        ] 57% ETA 0:00:00
```
-2

dir='path to file'; tar cpf - "$dir" | pv -s $(du -sb "$dir" | awk '{print $1}') | tar xpf - -C /other/path

starchox · 2010-01-19 19:05:45 3
Perl one liner for epoch time conversion

Converts Unix epoch time to localtime. Useful for any logs that only display epoch time. Show Sample Output
This is sample output - yours may be different.
```
perl -pe's/([\d.]+)/localtime $1/e;' /var/nagios/nagios.log

[Tue Jan 19 09:48:00 2010] HOST EVENT HANDLER: winboxen.example.com;(null);(null);(null);notify-host-by-email
```
3

perl -pe's/([\d.]+)/localtime $1/e;'

tuxtutorials · 2010-01-19 18:47:58 3
improve copy file over ssh showing progress

You set the file/dirname transfer variable, in the end point you set the path destination, this command uses pipe view to show progress, compress the file outut and takes account to change the ssh cipher. Support dirnames with spaces. Merged ideas and comments by http://www.commandlinefu.com/commands/view/4379/copy-working-directory-and-compress-it-on-the-fly-while-showing-progress and http://www.commandlinefu.com/commands/view/3177/move-a-lot-of-files-over-ssh Show Sample Output
This is sample output - yours may be different.
```
112MB 0:00:12 [8.78MB/s] [==============>     ] 96%
```
3

file='path to file'; tar -cf - "$file" | pv -s $(du -sb "$file" | awk '{print $1}') | gzip -c | ssh -c blowfish user@host tar -zxf - -C /opt/games

starchox · 2010-01-19 16:02:45 37
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Clean swap area after using a memory hogging application

When you run a memory intensive application (VirtualBox, large java application, etc) swap area is used as soon as memory becomes insufficient. After you close the program, the data in swap is not put back on memory and that decreases the responsiveness. Swapoff disables the swap area and forces system to put swap data be placed in memory. Since running without a swap area might be detrimental, swapon should be used to activate swap again. Both swapoff and swapon require root privileges.

Recursive Ownership Change

Changing files ownership in a directory recursivley from a user to another

Route outbound SMTP connections through a addtional IP address rather than your primary

Calculate pi with specific scale

a() function in bc is for arctangent, available if using -l option included.

Remove a line from a file using sed (useful for updating known SSH server keys when they change)

For example, to remove line 5 from foo, type: vi +5d +wq foo

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

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"

Binary injection

Replace (as opposed to insert) hex opcodes, data, breakpoints, etc. without opening a hex editor. HEXBYTES contains the hex you want to inject in ascii form (e.g. 31c0) OFFSET is the hex offset (e.g. 49cf) into the binary FILE

Best kayak chiang

Just how to best outfit your fishing kayak can rely upon they type of fishing you're performing and the conditions you'll encounter. Little streams and seas need different concerns than offshore huge game fishing for instance. Whatever form of fishing you want to do, kayak fishing has some distinctive factors as the space is limited. It will be vital that you prioritize the most crucial things that you'll require to gain access to most regularly, and have them within simple reach. Some fishermen like to help keep it simple and hold the minimal level of gear: some like to hold something that they might probably need. There are several standard components that will raise the fish-ability of a kayak, or ensure it is more angler-friendly. Seats: Different than the usual exercise and your fishing equipment I'd claim that a high quality seat are at the the top of priority list. If you intend to spend your day fishing in comfort, you need to purchase a kayak with an excellent seat, or install one yourself. Pole Members: These are easy and useful areas to carry your rods securely while paddling, fishing or trolling. Some kayaks result from the factory with flush mounted rod slots or rod cases mounted on variable brackets. Some kayak retailers may modify your kayak by rigging pole cases for you really to match the wants of one's fishery: you may prefer to platform your own. There are numerous different models and types of rod holders from which to choose 1. Remove support rod holders are reduced in profile and give you a clear deck, so are not as likely becoming a range catcher (especially when travel fishing). There are plugs readily available for travel rods, and extensions for mainstream rods. Both could be removed when not in use. 2. Flexible pole members that are attached to the terrace are fully variable up and down, and provide 360-degree rotation. They come in types for spin/bait throwing or fly rods. Some may be removed when maybe not in use, which really is a great function if you are fly fishing. 3. There many other choices for mounting pole cases to seats, dairy crates and several other custom rigs. 4. Whatever the kind of pole holders you utilize, you ought to connect a pole lead therefore you may not lose them overboard. When you have to create a surf entry or exit, you must keep or secure your supports so they're maybe not lost in case of Best kayak chiang. Point Programs: These let you not just to stay in one spot where you would like to fish, but and also to fish a big area in an organized way. If you are sight fishing, blind throwing, or trolling you will need to cover the location as thoroughly that you can, and the correct anchor system will enable you to do so. You need to begin with an point basket as the base for the point system: a constant line working via a pulley on your own bow to a pulley on your stern with a snap land on each conclusion, and mounted on a band in the middle. You are able to fix your anchor line to or through the band, allowing you to modify your anchor point from any stage along the entire length of the kayak.

List all symbolic links in current directory

Many competing commands to do this, but since most people want a Long list with Human readable files sizes and want to see All files (including hidden (.*) files) this one wins on simplicity and usefulness. Plus grep is just as, if not more portable than sed or awk, and is more widely understood. :)

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