No installation. USB stick portable applications.
Swiss File Knife

a command line
multi function tool.

remove tabs
list dir sizes
find text
filter lines
find in path
collect text
instant ftp or
http server
file transfer
send text
patch text
patch binary
run own cmd
convert crlf
dup file find
md5 lists
fromto clip
hexdump
split files
list latest
compare dirs
save typing
trace http
echo colors
head & tail
find classes
dep. listing
speed shell
zip search
zip dir list

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free external tools,
zero install effort,
usb stick compliant:

zip and unzip
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java sources

thread creation

cpp sources

log tracing
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hexdump
using printf

articles

embedded
stat. c array
stat. java array
var. c array
var. java array
view all text
as you type
surf over text
find by click
quick copy
multi view
find nearby
fullscreen
bookmarks
find by path
expressions
location jump
skip accents
clip match
filter lines
edit text
highlight
load filter
hotkey list
receive text
send in C++
send in Java
smooth scroll
touch scroll
fly wxWidgets
fly over Qt
search Java

create random numbers on the command line,

with the sfk random command on Windows, Mac OS X, Linux and Raspberry Pi.
- download the free Swiss File Knife Base from Sourceforge.
- open the Windows CMD command line, Mac OS X Terminal or Linux shell.
- OS X : type mv sfk-mac-i686.exe sfk and chmod +x sfk then ./sfk
- Linux: type mv sfk-linux.exe sfk    and chmod +x sfk then ./sfk
  OS X and Linux syntax may differ, check the help within the tool.
sfk rand[om] from to

create a random number. from and to values
can be in the range 1 to 32000 approx.

command chaining
   supports output chaining.

examples
   sfk rand 1 10
      create a number from 1 to 10
   sfk rand 1 10 +setvar r
      set variable r to a random number

example script: a number guessing game 

@echo off
sfk script %~f0 -from begin %*
rem . %~f0 is the absolute batch file name
GOTO xend

sfk label begin -var
   +if "%1 = " begin
      +tell "add 'play' to play the number game."
      +stop 0
      +endif
   +if "%1 = play" begin
      +call game
      +stop 0
      +endif
   +tell "unknown parameter: %1"
   +end

sfk label game
   // Note: install SFKTray to see colorful lights.
   +rand 1 10
      +setvar mynum
   +tell "i know a number, you can guess it."
   +tell "enter from 1 to 10, you have 3 tries."
   +setvar try="try again."
   +for i from 1 to 3
      +prompt
         +setvar usernum
      +if "#(i) > 2"
         then setvar try=""
      +if "#(mynum) < #(usernum)" begin
         +status local "slot=#(i) color=red"
         +tell "no, my number is [Red]lower[def]. #(try)"
         +endif
      +if "#(mynum) > #(usernum)" begin
         +status local "slot=#(i) color=red"
         +tell "no, my number is [Red]higher[def]. #(try)"
         +endif
      +if "#(mynum) = #(usernum)" begin
         +status local "slot=1 color=green blink=fast timeout=10"
         +status local "slot=2 color=green blink=fast timeout=10"
         +tell "[green]correct, you win![def]"
         +stop 0
         +endif
   +endfor
   +status local "slot=1 color=red blink=fast timeout=10"
   +status local "slot=2 color=red blink=fast timeout=10"
   +tell "[Red]3 tries done, you loose. it was #(mynum).[def]"
   +end

:xend


 
sfk is a free open-source tool, running instantly without installation efforts. no DLL's,
no registry changes - just get sfk.exe from the zip package and use it (binaries for
windows, linux and mac are included).

read more about all sfk functions here.

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