shc是一個加密shell腳本的工具.它的作用是把shell腳本轉換為一個可執(zhí)行的二進制文件.
用shell腳本對系統(tǒng)進行自動化維護,簡單,便捷而且可移植性好.
但shell腳本是可讀寫的,很有可能會泄露敏感信息,如用戶名,密碼,路徑,IP等.
同樣,在shell腳本運行時會也泄露敏感信息.
shc是一個加密shell腳本的工具.它的作用是把shell腳本轉換為一個可執(zhí)行的二進制文件.
這就很好的解決了上述問題.
tar zxvf shc-3.8.tgz
cd shc-3.8
make test
make
make test
make strings
make install 這一步需要root權限
使用方法:
shc -r -f script-name 注意:要有-r選項, -f 后跟要加密的腳本名.
運行后會生成兩個文件,script-name.x 和 script-name.x.c
script-name.x是加密后的可執(zhí)行的二進制文件.
./script-name 即可運行.
script-name.x.c是生成script-name.x的原文件(c語言)
This document is intended to serve as an introduction to Wavelet processing through a set of Matlab experiments. These experiments will gives an overview of three fundamental tasks in signal and image processing : signal, denoising and compression. These scripts are selfs contents (needed additional Matlab functions can be downloaded while reading the lectures).
Each one of these five lectures should take between 1h and 2h in order to tests the various features of the scripts. One should copy/paste the provided code into a file names e.g. tp1.m, and launch the script directly from Matlab comand line > tp1 . Some of the scripts contains "holes" that you should try to fill on your own.
I also provide the complete correction of these lectures as a set of Matlab scripts, but you should try as much as possible to avoid using them.
WinCC provides the possibility of making the runtime environment dynamic using the Visual Basic script. It is possible use VBS to program global actions and procedures as well as to dynamize and trigger graphic objects in runtime.
Obtain the CDF plots of PAPR from an OFDM BPSK transmission specified per IEEE 802.11a specification
Per the IEEE 802.11a specifications, we 52 have used subcarriers. Given so, the theoretical maximum expected PAPR is 52 (around 17dB). However, thanks to the scrambler, all the subcarriers in an OFDM symbol being equally modulated is unlikely.
Using a small script, the cumulative distribution of PAPR from each OFDM symbol, modulated by a random BPSK signal is obtained
A .zip file contains a series of scripts that were used in the MathWorks webinar "Using MATLAB to Develop Portfolio Optimization Models." The scripts generate 3D efficient frontiers for a universe of 44 stocks with time as the third axis. Additional scripts perform various ex-ante and ex-post analyses. Results are generated with and without market adjustments in the data. A readme.txt. file in the .zip folder describes each script and how to use it
