scripting – Make Me Engineer

How to compile a linux shell script to be a standalone executable binary (i.e. not just e.g. chmod 755)?

May 24, 2023 by Tarik

The solution that fully meets my needs would be SHC – a free tool, or CCsh a commercial tool. Both compile shell scripts to C, which then can be compiled using a C compiler. Links about SHC: https://github.com/neurobin/shc http://www.datsi.fi.upm.es/~frosal/ http://www.downloadplex.com/Linux/System-Utilities/Shell-Tools/Download-shc_70414.html Links about CCsh: http://www.comeaucomputing.com/faqs/ccshlit.html

VBScript getting results from Shell

May 16, 2023 by Tarik

You will want to use the WshShell object’s Exec method instead of Run. Then simply read the command line’s output from the standard streams. Try this one: Const WshFinished = 1 Const WshFailed = 2 strCommand = “ping.exe 127.0.0.1” Set WshShell = CreateObject(“WScript.Shell”) Set WshShellExec = WshShell.Exec(strCommand) Select Case WshShellExec.Status Case WshFinished strOutput = WshShellExec.StdOut.ReadAll … Read more

How can I sum values in column based on the value in another column?

November 22, 2022 by Tarik

$ awk ‘{a[$1]+=$2}END{for(i in a) print i,a[i]}’ file ABC 80 XYZ 20 MNP 60 DEF 170

What are the best ways to automate a GDB debugging session?

November 2, 2022 by Tarik

Basically, in this example I wanted to get some variable values in particular places of the code; and have them output until the program crashes. So here is first a little program which is guaranteed to crash in a few steps, test.c: #include <stdio.h> #include <stdlib.h> int icount = 1; // default value main(int argc, … Read more

Stopping scripters from slamming your website

October 6, 2022 by Tarik

How about implementing something like SO does with the CAPTCHAs? If you’re using the site normally, you’ll probably never see one. If you happen to reload the same page too often, post successive comments too quickly, or something else that triggers an alarm, make them prove they’re human. In your case, this would probably be … Read more

Running a CMD or BAT in silent mode

September 4, 2022 by Tarik

Include the phrase: @echo off right at the top of your bat script.

How do you execute an arbitrary native command from a string?

September 2, 2022 by Tarik

Invoke-Expression, also aliased as iex. The following will work on your examples #2 and #3: iex $command Some strings won’t run as-is, such as your example #1 because the exe is in quotes. This will work as-is, because the contents of the string are exactly how you would run it straight from a Powershell command … Read more

Using sed, Insert a line above or below the pattern? [duplicate]

July 25, 2022 by Tarik

To append after the pattern: (-i is for in place replace). line1 and line2 are the lines you want to append(or prepend) sed -i ‘/pattern/a \ line1 \ line2’ inputfile Output: #cat inputfile pattern line1 line2 To prepend the lines before: sed -i ‘/pattern/i \ line1 \ line2’ inputfile Output: #cat inputfile line1 line2 pattern

Scripting Language vs Programming Language [closed]

July 18, 2022 by Tarik

Scripting languages are programming languages that don’t require an explicit compilation step. For example, in the normal case, you have to compile a C program before you can run it. But in the normal case, you don’t have to compile a JavaScript program before you run it. So JavaScript is sometimes called a “scripting” language. … Read more

Escaping Double Quotes in Batch Script

May 21, 2022 by Tarik

The escape character in batch scripts is ^. But for double-quoted strings, double up the quotes: “string with an embedded “” character”