Latest recipes tagged "utility" Code RecipesA simple Unix shell utility to save cleaned-up man pages as text (Bash) 2017-03-25T14:12:25-07:00Vasudev Ram <p style="color: grey"> Bash recipe 580766 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/documentation/">documentation</a>, <a href="/recipes/tags/man/">man</a>, <a href="/recipes/tags/script/">script</a>, <a href="/recipes/tags/shell/">shell</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>It's a shell script that lets you save the man pages for one or more Unix commands, system calls or other topics, to text files, after cleaning up the man command output to remove formatting meant for emphasis, printing, etc.</p> <p>More information here:</p> <p><a href="" rel="nofollow"></a></p> A utility like Unix seq (command-line), in Python (Python) 2017-01-08T17:48:57-08:00Vasudev Ram <p style="color: grey"> Python recipe 580744 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/command/">command</a>, <a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/script/">script</a>, <a href="/recipes/tags/seq/">seq</a>, <a href="/recipes/tags/sequence/">sequence</a>, <a href="/recipes/tags/shell/">shell</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>This recipe shows how to create a utility like Unix seq (command-line), in Python. seq is described here: </p> <p><a href="" rel="nofollow"></a></p> <p>but briefly, it is a command-line utility that takes 1 to 3 arguments (some being optional), the start, stop and step, and prints numbers from the start value to the stop value, on standard output. So seq has many uses in bigger commands or scripts; a common category of use is to quickly generate multiple filenames or other strings that contain numbers in them, for exhaustive testing, load testing or other purposes. A similar command called jot is found on some Unix systems.</p> <p>This recipe does not try to be exactly the same in functionality as seq. It has some differences. However the core functionality of generating integer sequences is the same (but without steps other than 1 for the range).</p> <p>More details and sample output are here:</p> <p><a href="" rel="nofollow"></a></p> <p>The code is below.</p> A command-line musical alarm clock (Python) 2016-12-30T19:06:32-08:00Vasudev Ram <p style="color: grey"> Python recipe 580739 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/clock/">clock</a>, <a href="/recipes/tags/multimedia/">multimedia</a>, <a href="/recipes/tags/music/">music</a>, <a href="/recipes/tags/playsound/">playsound</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/time/">time</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>This is a simple musical alarm clock in Python. You pass a command-line argument specifying the time in minutes after which the alarm should go off. When that time arrives, it plays a musical sound.</p> Process Delimiter-Separated Values data with Python (Python) 2016-11-24T23:57:35-08:00Vasudev Ram <p style="color: grey"> Python recipe 580722 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/command/">command</a>, <a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/data/">data</a>, <a href="/recipes/tags/dsv/">dsv</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>This recipe shows how to read and process delimiter-separated values (DSV) data with a Python command-line program. It provides two ways of specifying the delimiter character, by an ASCII character or an ASCII code, which makes it more flexible than allowing only a character. It allows the DSV data to be specified as one or more filenames on the command line, or given via the standard input of the program.</p> Trap KeyboardInterrupt and EOFError for graceful program termination (Python) 2016-11-13T20:17:03-08:00Vasudev Ram <p style="color: grey"> Python recipe 580718 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/ascii/">ascii</a>, <a href="/recipes/tags/error/">error</a>, <a href="/recipes/tags/exception/">exception</a>, <a href="/recipes/tags/handler/">handler</a>, <a href="/recipes/tags/shutdown/">shutdown</a>, <a href="/recipes/tags/terminate/">terminate</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>This recipe shows how to trap the KeyboardInterrupt and EOFError Python exceptions so that they do not crash your program. As a vehicle to show this, it uses a small Python utility that shows the ASCII code for any ASCII character you type.</p> Generate a PDF cheat sheet for converting 0 to 255 between bin / oct / dec / hex (Python) 2016-10-10T20:40:48-07:00Vasudev Ram <p style="color: grey"> Python recipe 580706 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/binary/">binary</a>, <a href="/recipes/tags/conversion/">conversion</a>, <a href="/recipes/tags/decimal/">decimal</a>, <a href="/recipes/tags/hexadecimal/">hexadecimal</a>, <a href="/recipes/tags/octal/">octal</a>, <a href="/recipes/tags/pdfwriter/">pdfwriter</a>, <a href="/recipes/tags/pdf_generation/">pdf_generation</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/xtopdf/">xtopdf</a>). </p> <p>This recipe shows how to generate a PDF cheat sheet, that contains a table for conversion of the numbers 0 to 255 (the numbers that can fit in one byte) between binary, octal, decimal and hexadecimal representations. The table has four columns, one for each of those bases, and 256 rows, for the numbers 0 to 255.</p> <p>TO use the table, you can look for a number, say in decimal, in the Dec(imal) column (or use the search function of your PDF viewer), then when you find it in some row, just look at the other 3 columns in that row, to find the value of that number in binary, octal and hexadecimal. And use the same procedure if starting with a number in any of the other three bases.</p> Quick-and-dirty Windows drive detector (Python) 2016-09-20T17:46:37-07:00Vasudev Ram <p style="color: grey"> Python recipe 580699 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/drives/">drives</a>, <a href="/recipes/tags/sysadmin/">sysadmin</a>, <a href="/recipes/tags/system_programming/">system_programming</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This is a quick-and-dirty Python script to detect the currently available drives on your Windows PC.</p> Hamming Error Correction Code (Python) 2016-07-23T07:58:14-07:00FB36 <p style="color: grey"> Python recipe 580691 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/encoding/">encoding</a>, <a href="/recipes/tags/engineering/">engineering</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/mathematics/">mathematics</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>Hamming(7,4) Error Correction Code (ECC).</p> Image Resizer (Python) 2016-05-22T16:45:52-07:00FB36 <p style="color: grey"> Python recipe 580663 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/image/">image</a>, <a href="/recipes/tags/images/">images</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). Revision 2. </p> <p>Image resizer/converter command-line utility.</p> A binary file split utility in Python (Python) 2016-04-07T18:19:35-07:00Vasudev Ram <p style="color: grey"> Python recipe 580637 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/binary/">binary</a>, <a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This recipe shows how to create a simple binary file split utility in Python.</p> <p>It takes two command line arguments: 1) the name of the input file to split , 2) the number of bytes per file into which to split the input.</p> Unix-like split command in Python (simple version) (Python) 2016-03-14T22:35:05-07:00Vasudev Ram <p style="color: grey"> Python recipe 580620 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/shell/">shell</a>, <a href="/recipes/tags/split/">split</a>, <a href="/recipes/tags/splitting/">splitting</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This recipe shows how to create a simple version of the Unix split command in Python. The split command splits an input file into multiple smaller files, the size of each of which is specified by a command-line argument giving the number of lines per file. This is useful for multiple purposes, such as editing large files in pieces, backing up files to small capacity storage devices, sending files across the network, etc.</p> Catalog multiple drives (Python) 2016-03-11T03:39:32-08:00Jack Trainor <p style="color: grey"> Python recipe 580619 by <a href="/recipes/users/4076953/">Jack Trainor</a> (<a href="/recipes/tags/drives/">drives</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>As one accumulates multiple drives, hard and flash, containing, thousands even millions of files, it becomes useful to have a text file containing an alphabetized catalog list of all files and their locations by drive and directory.</p> <p>The list can be searched by eye or by an editor to locate particular files.</p> <p>The list can also be loaded into a script to be filtered programmatically as desired.</p>, like the Unix od (octal dump) command (Python) 2015-11-01T12:43:38-08:00Vasudev Ram <p style="color: grey"> Python recipe 579120 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/data/">data</a>, <a href="/recipes/tags/dump/">dump</a>, <a href="/recipes/tags/hexadecimal/">hexadecimal</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/octal/">octal</a>, <a href="/recipes/tags/od/">od</a>, <a href="/recipes/tags/representation/">representation</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/windows/">windows</a>). </p> <p>This recipe implements a simple data dump tool, roughly like the od command of Unix, which stands for octal dump (though od can also dump data in hex and other formats). This tool dumps data in character and hex formats, in this version. This is version 1.</p> CSV to Flat File Converter (Python) 2015-08-02T17:31:59-07:00FB36 <p style="color: grey"> Python recipe 579091 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/csv/">csv</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>Converts a CSV file to a flat file (table).</p> Shortcut Utility (Python) 2015-03-29T20:45:57-07:00FB36 <p style="color: grey"> Python recipe 579041 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/desktop/">desktop</a>, <a href="/recipes/tags/directories/">directories</a>, <a href="/recipes/tags/directory/">directory</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/tkinter/">tkinter</a>, <a href="/recipes/tags/ui/">ui</a>, <a href="/recipes/tags/utilities/">utilities</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>I dislike filling my desktop with shortcut icons in Windows. This code enables creating shortcuts in a CSV file.</p> Find Duplicate Files (Python) 2014-10-12T21:14:05-07:00FB36 <p style="color: grey"> Python recipe 578950 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/dictionary/">dictionary</a>, <a href="/recipes/tags/directories/">directories</a>, <a href="/recipes/tags/directory/">directory</a>, <a href="/recipes/tags/disk/">disk</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>Finds duplicate files which have same size and same content in the same directory or two different directories.</p> 'Which' for Windows (Python) 2013-08-16T09:14:07-07:00Robert Pyron <p style="color: grey"> Python recipe 578642 by <a href="/recipes/users/4174781/">Robert Pyron</a> (<a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/utility/">utility</a>, <a href="/recipes/tags/which/">which</a>, <a href="/recipes/tags/windows/">windows</a>). Revision 2. </p> <p>WHICH.PY scans through all directories specified in the system %PATH% environment variable, looking for the specified COMMAND(s). It tries to follow the sometimes bizarre rules for Windows command lookup.</p> Countdown Timer (Python) 2012-12-06T03:24:35-08:00Stephen Chappell <p style="color: grey"> Python recipe 578363 by <a href="/recipes/users/2608421/">Stephen Chappell</a> (<a href="/recipes/tags/demonstration/">demonstration</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/timer/">timer</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>Ever wanted to set a timer that went off after a specified number of hours / minutes / seconds? This Windows recipe runs on the command line and does that with the arguments it accepts. Simple but effective, the program works well for remembering food in the oven among other things.</p> Zero (Batch) Programs (Python) 2012-07-10T12:37:37-07:00Stephen Chappell <p style="color: grey"> Python recipe 578205 by <a href="/recipes/users/2608421/">Stephen Chappell</a> (<a href="/recipes/tags/archive/">archive</a>, <a href="/recipes/tags/batch/">batch</a>, <a href="/recipes/tags/old/">old</a>, <a href="/recipes/tags/processing/">processing</a>, <a href="/recipes/tags/utility/">utility</a>). Revision 2. </p> <p>Having written many programs that work with groups of files, the zero programs were written based on a simple batch engine in the <code>zero</code> utility. All of the other programs import the first program to take advantage of its batch processor while supplementing there own functionality in place of zeroing out file data. This is committed for archival to be run under Python 2.5 or later versions.</p> Custom Windows Alarm Clock (Python) 2012-07-10T17:27:48-07:00Stephen Chappell <p style="color: grey"> Python recipe 578204 by <a href="/recipes/users/2608421/">Stephen Chappell</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/archive/">archive</a>, <a href="/recipes/tags/clock/">clock</a>, <a href="/recipes/tags/old/">old</a>, <a href="/recipes/tags/utility/">utility</a>). </p> <p>After writing a few alarms using <code>winsound.Beep</code>, desire to expand into other sound possibilities led to the writing of this program using <code>winsound.PlaySound</code>. The sounds are stored in a custom format (some experimentation in archiving files). This is committed for archival to be run under Python 2.5 or later versions.</p>