Commands by kev

Commands by kev (116)

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where am I in google map?
This is sample output - yours may be different.
-2

curl -s http://geoiplookup.wikimedia.org/ | python3 -c 'import sys, json, string, webbrowser; webbrowser.open(string.Template("http://maps.google.com/maps?q=$lat,$lon").substitute(json.loads(sys.stdin.read().split("=")[-1])))'

kev · 2011-11-10 01:25:30 3
batch download jpgs which are in sequence
This is sample output - yours may be different.
0

curl -O http://www.site.com/img/image[001-175].jpg

kev · 2011-11-09 10:19:24 4
recursively walk down no more than three levels and grab any file with an extension of mp3, mpg, mpeg, or avi
This is sample output - yours may be different.
1

wget -A mp3,mpg,mpeg,avi -r -l 3 http://www.site.com/

kev · 2011-11-09 10:06:07 3
send cookie
This is sample output - yours may be different.
0

curl -b cookie.txt http://www.site.com/download/file.txt

kev · 2011-11-09 03:00:49 4
save login cookie
This is sample output - yours may be different.
0

curl -c cookie.txt -d username=hello -d password=w0r1d http://www.site.com/login

kev · 2011-11-09 02:57:39 3
Using json.tool from the shell to validate and pretty-print
This is sample output - yours may be different.
4

echo '{"json":"obj"}' | python -mjson.tool

kev · 2011-11-08 10:44:29 10
fomat/encode/escape xml
This is sample output - yours may be different.
0

xml fo -e utf-8 file.xml | xml esc

kev · 2011-11-08 07:51:40 3
clear all non-ascii chars of file.txt
This is sample output - yours may be different.
2

iconv -c -f utf-8 -t ascii file.txt

kev · 2011-11-05 08:27:03 4
build cscope.out from all *.{h,cpp}, but ignore hidden files

cd / find `pwd` -name '.*' -prune -o $ -name *.h -o -name *.cpp $ -print | cscope -bi- export CSCOPE_DB=/cscope.out vim +'set cst'
This is sample output - yours may be different.
-2

find `pwd` -name '.*' -prune -o $ -name *.h -o -name *.cpp $ -print | cscope -bi-

kev · 2011-11-02 08:43:40 6
convert UNIX timestamp to UTC timestamp

date -ud @1320198157
This is sample output - yours may be different.
6

TZ=UTC date -d @1320198157

kev · 2011-11-02 01:48:49 4
move you up one directory quickly
This is sample output - yours may be different.
-21

alias ..='cd ..'

kev · 2011-10-28 10:12:57 11
pick up 3 lines start at every 5th line of file.txt

sed '4~5,+1d' file.txt 1 2 3 6 7 8 Show Sample Output
This is sample output - yours may be different.
```
sed '4~5,+1d' file.txt
1
2
3
6
7
8
```
0

sed -n '1~5{N;N;p}' file.txt

kev · 2011-10-26 16:15:34 3
append empty line after every line in file.txt
This is sample output - yours may be different.
3

sed G file.txt

kev · 2011-10-26 15:14:24 5
wc in perl
This is sample output - yours may be different.
1

perl -ane 'END{printf(" %d %d %d\n", $x, $y, $z)} $x+=1; $y+=@F; $z+=length' file.txt

kev · 2011-10-24 06:14:02 10
print multiplication formulas

seq -s ' ' 1 9 | sed -n ':a;p;s/ *\w$//;h;/^$/t;b a;q' | tac | awk '{for(i=1;i 1x1=1 1x2=2 2x2=4 1x3=3 2x3=6 3x3=9 1x4=4 2x4=8 3x4=12 4x4=16 1x5=5 2x5=10 3x5=15 4x5=20 5x5=25 1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36 1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49 1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64 1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81
This is sample output - yours may be different.
11

seq 9 | sed 'H;g' | awk -v RS='' '{for(i=1;i<=NF;i++)printf("%dx%d=%d%s", i, NR, i*NR, i==NR?"\n":"\t")}'

kev · 2011-10-22 18:41:09 31
make comments invisible when editing a file

you should choose proper color to make comments invisible.
This is sample output - yours may be different.
-1

vim -c'highlight Comment ctermfg=white' my.conf

kev · 2011-10-21 00:53:03 67
return a titlecased version of the string[str.title() in python]
This is sample output - yours may be different.
1

title() { sed 's/\<\w*/\u&/g' <<<$@; }

kev · 2011-10-11 01:23:12 3
using `!#$' to referance backward-word

expand to: cp /work/host/phone/ui/main.cpp /work/target/phone/ui/main.cpp !# The entire command line typed so far.
This is sample output - yours may be different.
33

cp /work/host/phone/ui/main.cpp !#$:s/host/target

kev · 2011-09-20 06:48:07 15
capture screen and mic

sxga ==> 1280x1024 vga ==> 800x600 ------------------------------------------------ xwininfo -root | grep geometry ------------------------------------------------
This is sample output - yours may be different.
0

ffmpeg -f alsa -i default -f x11grab -s sxga -r 10 -i :0.0 -f mp4 -s vga -sameq out.mp4

kev · 2011-09-18 15:10:56 3
sendmail via commandline
This is sample output - yours may be different.
-3

cat file.txt | sendmail -F myname -f admin@mysite.com guest@guest.com

kev · 2011-09-18 11:35:35 47
decrypt file.txt.gpg using my private key
This is sample output - yours may be different.
-4

gpg -d file.txt.gpg -o file.txt

kev · 2011-09-17 05:04:59 6
verify a file using its detached signature
This is sample output - yours may be different.
-4

gpg --verify file.txt.asc file.txt

kev · 2011-09-17 04:58:56 3
encrypt file.txt using a symmetric password
This is sample output - yours may be different.
0

gpg -c file.txt

kev · 2011-09-17 04:53:03 3
encrypt file.txt using myfriend's pubkey && add your signature

-s Make a signature. -e Encrypt data. -r Encrypt for user id name.
This is sample output - yours may be different.
-3

gpg -ser 'myfriend@gmail.com' file.txt

kev · 2011-09-17 04:51:02 3
create a detached signature for file.txt
This is sample output - yours may be different.
-3

gpg -ab file.txt

kev · 2011-09-17 04:42:55 3
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Convert images to a multi-page pdf

The linux package imagmagick is required for this command

turn off auto hard disc boot scanning for ext3

Display current time in requested time zones.

The time zone names come from the tz database which is usually found at /usr/share/zoneinfo.

Reconnect to screen without disconnecting other sessions

Have your screen session running in multiple places. (warning, things start to look weird if the terminal windows have different dimensions)

Open a manpage in the default (graphical) web browser

An easy alias for opening a manpage, nicely HTML formatted, in your set internet browser. If you get a "command exited with status 3" error you need to install groff.

Check syntax of all Perl modules or scripts underneath the current directory

Finds all *.p[ml]-files and runs a perl -c on them, checking whether Perl thinks they are syntactically correct

Rename files in batch

Upload images to omploader.org from the command line.

This function uploads images to http://omploader.org and then prints out the links to the file. Some coloring can also be added to the command with: $ompload() { curl -F file1=@"$1" http://omploader.org/upload|awk '/Info:|File:|Thumbnail:|BBCode:/{gsub(/

prints line numbers

return a titlecased version of the string

Needs Bash4. Found at http://stackoverflow.com/questions/2264428/converting-string-to-lower-case-in-bash-shell-scripting alongside a few other tricks.

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Commands by kev (116)

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