Make Win7 Explorer Open at Root ( \ )

Language butchery by Mr Rich on  9.6.10 @ 11:46

With thanks to Tech Republic (login required to view): http://bit.ly/dctBDp

  1. R-Click Win Explorer > Properties

  2. Win Explorer Properties Box: Shortcut tab.

  3. Change Target box to read:
    %SystemRoot%\explorer.exe /e,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}


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Date Strings

Language butchery by Mr Rich on  2.6.10 @ 15:22

Remember the bloody +
$ date +%d-%b-%Y_%H-%M-%S
02-Jun-2010_15-22-54


String Options



%%     a literal%
%a     locale's abbreviated weekday name (e.g., Sun)
%A     locale's full weekday name (e.g., Sunday)
%b     locale's abbreviated month name (e.g., Jan)
%B     locale's full month name (e.g., January)
%c     locale's date and time (e.g., Thu Mar 3 23:05:25 2005)
%C     century; like %Y, except omit last two digits (e.g., 20)
%d     day of month (e.g, 01)
%D     date; same as %m/%d/%y
%e     day of month, space padded; same as %_d
%F     full date; same as %Y-%m-%d
%g     last two digits of year of ISO week number (see %G)
%G     year of ISO week number (see %V); normally useful only with %V
%h     same as %b
%H     hour (00..23)
%I     hour (01..12)
%j     day of year (001..366)
%k     hour ( 0..23)
%l     hour ( 1..12)
%m     month (01..12)
%M     minute (00..59)
%n     a newline
%N     nanoseconds (000000000..999999999)
%p     locale's equivalent of either AM or PM; blank if not known
%P     like %p, but lower case
%r     locale's 12-hour clock time (e.g., 11:11:04 PM)
%R     24-hour hour and minute; same as %H:%M
%s     seconds since 1970-01-01 00:00:00 UTC
%S     second (00..60)
%t     a tab
%T     time; same as %H:%M:%S
%u     day of week (1..7); 1 is Monday
%U     week number of year, with Sunday as first day of week (00..53)
%V     ISO week number, with Monday as first day of week (01..53)
%w     day of week (0..6); 0 is Sunday
%W     week number of year, with Monday as first day of week (00..53)
%x     locale's date representation (e.g., 12/31/99)
%X     locale's time representation (e.g., 23:13:48)
%y     last two digits of year (00..99)
%Y     year
%z     +hhmm numeric timezone (e.g., -0400)
%:z   +hh:mm numeric timezone (e.g., -04:00)
%::z   +hh:mm:ss numeric time zone (e.g., -04:00:00)
%:::z  numeric time zone with : to necessary precision (e.g., -04, +05:30)
%Z     alphabetic time zone abbreviation (e.g., EDT)

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Find /Replace with Perl

Language butchery by Mr Rich on  ;@ 12:26

Uses a vi-like search and replace syntax:
perl -pi -e 's/find this/replace with this/g' /tmp/file.txt

When placed into a for loop, you get some pretty cool capabilities. For example, find string and replace with nothing:
ls -1 dir/*svg > svg-files
for file in `cat svg-files`; do perl -pi -e ' s/\/home\/richw\/screenshots\/784wide\/dir\///g' $file; done

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More Tarball Creation

Language butchery by Mr Rich on  ;@ 12:11

Bzip: tar -cvJf foobar.tar.bz2 dir/file.ext
LZMA: tar -cvJf foobar.tar.lzma dir/file.ext

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Command Line Calculations With bc

Language butchery by Mr Rich on  ;@ 09:58

scale=3
Foo*Bar

  • scale= sets the decimal precision

scale=3
6*6
36
8*5
40
5*7.32
36.60

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Screenshots From the Bash Command Line

Language butchery by Mr Rich on  ;@ 09:37

ImageMagick import:
import -frame FooBar.png
  • -frame will keep the window decorations and widgets (close, minimize, etc.)


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