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Record Alexa Traffic Stats of your Website

This will record the Alexa Traffic Stats to a file and run every 5 hours. -- www.fir3net.com --
This is sample output - yours may be different.
0

x=1 ; while [ $x -le 10 ] ; do lynx -dump http://www.alexa.com/siteinfo/http://[YOUR WEBSITE] | grep Global | sed 's/ \|Global\|\,//g' >> /var/log/alexa-stats.txt ; sleep 5h ; done &

felix001 · 2009-10-17 13:48:05 3
get the ascii number with bash builtin printf
This is sample output - yours may be different.
1

printf "%d\n" "'A" "'B"

twfcc · 2009-10-17 09:50:44 4
Function to output an ASCII character given its decimal equivalent

Doesn't fail for percent sign now.
This is sample output - yours may be different.
0

chr () { echo -en "\0$(printf %x $1)"}

infinull · 2009-10-16 21:54:58 3
Get decimal ascii code from character

uses the previous "chr" function and uses it to create the inverse function "ord" by brute force. It's slow, It's inelegant, but it works. I thought I needed ord/chr to do a cartesian cipher in shell script a whie ago, but eventualy I realized I could get fancy with tr and do the same thing...
This is sample output - yours may be different.
0

ord () { seq 1 127 | while read i; do echo `chr $i` $i; done | grep "^$1 " | cut -c '3-' }

infinull · 2009-10-16 21:54:01 4
Function to output an ASCII character given its decimal equivalent
This is sample output - yours may be different.
2

chr() { printf \\$(printf %o $1); }

zude · 2009-10-16 19:10:44 3
Less a grep result, going directly to the first match in the first file

Really useful way to combine less and grep while browsing log files. I can't figure out how to make it into a true oneliner so paste it into a script file called lgrep: Usage: lgrep searchfor file1 [file2 file3] Advanced example (grep for an Exception in logfiles that starts with qc): lgrep Exception $(find . -name "qc*.log") Show Sample Output
This is sample output - yours may be different.
```
      91 DomPEtlMotorServer1.log00110.gz:        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
      92 DomPEtlMotorServer1.log00110.gz:        at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
*     93 DomPEtlMotorServer1.log00110.gz:org.hibernate.PropertyValueException: not-null property references a null or transient value
      94 DomPEtlMotorServer1.log00110.gz:        at org.hibernate.engine.Nullability.checkNullability(Nullability.java:95)
```
1

argv=("$@"); rest=${argv[@]:1}; less -JMN +"/$1" `grep -l $1 $rest`

lassel · 2009-10-16 17:36:16 3
Clear your history saved into .bash_history file!

Note the space before the command; that prevents your history eliminating command from being recorded. ' history -c && rm -f ~/.bash_history' Both steps are needed. 'history -c' clears what you see in the history command. 'rm -f ~/.bash_history' deletes the history file in your home directory.
This is sample output - yours may be different.
3

history -c && rm -f ~/.bash_history

unixmonkey6650 · 2009-10-16 13:48:20 6
Clear your history saved into .bash_history file!

clears the history
This is sample output - yours may be different.
3

history -c

yooreck · 2009-10-16 13:21:36 3
Clear your history saved into .bash_history file!
This is sample output - yours may be different.
-4

echo "" > .bash_history

osvaldofilho · 2009-10-16 12:55:53 3
google search

not my cmd... found on the web Show Sample Output
This is sample output - yours may be different.
```
  12. http://g33kinfo.com/
  15. http://g33kinfo.com/info/?p=386
  18. http://g33kinfo.com/info/?p=440
  20. http://g33kinfo.com/info/?p=441
  22. http://g33kinfo.com/info/?p=288
  25. http://g33kinfo.com/info/?p=355
  28. http://g33kinfo.com/info/?p=327
  31. http://g33kinfo.com/info/?p=400
  34. http://g33kinfo.com/info/?p=102
  37. http://g33kinfo.com/info/?p=402
```
0

perl -e '$i=0;while($i<10){open(WGET,qq/|xargs lynx -dump/);printf WGET qq{http://www.google.com/search?q=site:g33kinfo.com&hl=en&start=$i&sa=N},$i+=10}'|grep '\/\/g33kinfo.com\/'

op4 · 2009-10-16 12:20:17 7
Email if you disk is over 90%

Email if you disk is over 90% - www.fir3net.com
This is sample output - yours may be different.
-1

HDD=$(df | awk ' NR>3 (S=$5) (M=$6) { if (S>90) print "Your Systems "M" is """S" Full" } ') ; [[ $HDD ]] && echo "$HDD" | mail -s "Hard-Drives Full" TO@EMAIL.com -- -f FROM@EMAIL.com >/dev/null

felix001 · 2009-10-16 06:52:36 5
tail, with specific pattern colored
This is sample output - yours may be different.
6

tail -F file | egrep --color 'pattern|$'

sklm · 2009-10-16 04:01:14 10
Set gnome wallpaper to a random jpg from the specified directory

Every time this is run it will change your background picture. For added fun Add some DBUS magic: . $HOME/.dbus/session-bus/`cat /var/lib/dbus/machine-id`-0 export DBUS_SESSION_BUS_ADDRESS and a crontab entry: */5 * * * * above_command_in_script.sh >/dev/null 2>/dev/null now wallpaper changes every 5 mins
This is sample output - yours may be different.
2

gconftool -t str -s /desktop/gnome/background/picture_filename "`find /DIR_OF_JPGS -name '*.jpg' | shuf -n 1`"

cbrinker · 2009-10-16 01:17:47 5
A quick shell command to weed out the small wallpapers

For all of the jpgs in a directory, determine their size and if below a threshold remove them forcefully.
This is sample output - yours may be different.
0

for i in ~/Desktop/Personal/Wallpapers/*.jpg ; { size=$((`identify -format "%wx%h" $i | sed 's/x/*/'`)) ; if [[ $size -lt 800001 ]] then ; rm -f "$i" ; fi; }

cbrinker · 2009-10-16 00:21:21 4
Convert video type from mpg to wmv
This is sample output - yours may be different.
0

mencoder -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1000:vhq -oac mp3lame -lameopts br=98 -o output.wmv input.mpg

gombiuda · 2009-10-16 00:18:57 3
disk space email alert

put it in crontab to get an alert when / is over 89% utilization.
This is sample output - yours may be different.
4

[ $(df / | perl -nle '/([0-9]+)%/ && print $1') -gt 90 ] && df -hP | mutt -s "Disk Space Alert -- $(hostname)" admin@example.com

grokskookum · 2009-10-15 21:11:54 8
rsync + find

use find with rsync
This is sample output - yours may be different.
11

find . -name "whatever.*" -print0 | rsync -av --files-from=- --from0 ./ ./destination/

grokskookum · 2009-10-15 20:06:38 21
Transforms a file to all uppercase.
This is sample output - yours may be different.
-1

perl -i -ne 'print uc $_' $1

rbs · 2009-10-15 16:59:38 4
Create a list of sequential logins

This command generates a sequential login list. Good to be used as a source of new logins.
This is sample output - yours may be different.
-4

seq -w 100 | sed 's/^/login/'

lawrence · 2009-10-15 13:56:56 10
tail, with specific pattern colored

but you can't see the colors in that sample output :( Show Sample Output
This is sample output - yours may be different.
```
seq 1111 1122|egrep --color=always $\|12
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
```
-2

tail -f file | egrep --color=always $\|PATTERN

sitaram · 2009-10-15 13:08:30 16
Creating sequence of number with text

Nice command to create a list, you can create too with for command, but this is so faster. Show Sample Output
This is sample output - yours may be different.
```
jeju:[xxxx] > seq 10 |xargs -n1 echo Printing line
Printing line 1
Printing line 2
Printing line 3
Printing line 4
Printing line 5
Printing line 6
Printing line 7
Printing line 8
Printing line 9
Printing line 10
jeju:[xxxx] >
```
0

seq 10 |xargs -n1 echo Printing line

Waldirio · 2009-10-15 11:05:35 7
To print a specific line from a file

You can get one specific line during any procedure. Very interesting to be used when you know what line you want. Show Sample Output
This is sample output - yours may be different.
```
jeju:[xxx] > sed -n 5p test
line 5
jeju:[xxx] > cat test
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8
line 9
line 10
jeju:[xxx] >
```
44

sed -n 5p <file>

Waldirio · 2009-10-15 11:00:48 140
Function to output an ASCII character given its decimal equivalent

I've corrected the function. My octal conversion formula was completely wrong. Thanks to pgas at http://mywiki.wooledge.org/BashFAQ/071 for setting me straight. The new function is from pgas and is very fast. Show Sample Output
This is sample output - yours may be different.
```
$ chr 65
A
```
5

chr () { printf \\$(($1/64*100+$1%64/8*10+$1%8)); }

dennisw · 2009-10-15 07:01:54 7
Proxy all web traffic via ssh

Run this on a windows machine then add your localhost as a socks server for port 8080 within your web browser. Your traffic will now be proxying and sent via your server over ssh.
This is sample output - yours may be different.
0

Putty -d 8080 [server]

felix001 · 2009-10-15 06:54:58 5
colored tail
This is sample output - yours may be different.
1

tail -f FILE | grep --color=always KEYWORD

dennisw · 2009-10-15 06:54:45 8
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Size (in bytes) of all RPM packages installed

This command will output the size of all RPM packages and string them together into one enormous addition command which will be calculated by the echo $(( ))

Generate a random password 30 characters long

convert UNIX timestamp to UTC timestamp

date -ud @1320198157

Synchronise a file from a remote server

You will be prompted for a password unless you have your public keys set-up.

Change permissions of every directory in current directory

"find . -type d -print0 | xargs -0 chmod 755" thanks masterofdisaster

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

rsync directory tree including only files that match a certain find result.

'-mtime -10' syncs only files newer 10 days (-mtime is just one example, use whatever find expressions you need) printf %P: File's name with the name of the command line argument under which it was found removed. this way, you can use any src directory, no need to cd into your src directory first. using \\0 in printf and a corresponding --from0 in rsync ensures that even filenames with newline characters work (thanks syssyphus for #3808). both, #1481 and #3808 just work if you either copy the current directory (.) , or the filesystem root (/), otherwise the output from find and the source dir from rsync just don't match. #7685 works with an arbitrary source directory.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

The top ten commands you use

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

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