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  • read from file after calling lseek64 - Linux

    - by rursw1
    Hi, I'm trying to read a large file ( 2.0 GB). The seeking is done by lseek64, then I tried to read using read(fileHandle, buffer, bufferLength)\ pread64(fileHandle, buffer, bufferLength, offset) - but both return with -1. What could it be? Thanks in advance!

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  • File size in Python server

    - by Anna
    We have server on Python and client + web service on Ruby. That works only if file from URL is less than 800 k. It seems like "socket.puts data" in a client works, but "output = socket.gets" - not. I think problem is in a Python part. For big files tests run "Connection reset by peer". Is it buffer size variable by default somewhere in a Python?

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  • counting paragraphs in text file

    - by robjez
    I need to create perl code which allows counting paragraphs in text files. I tried this and doesn't work: open(READFILE, "<$filename") or die "could not open file \"$filename\":$!"; $paragraphs = 0; my($c); while($c = getc(READFILE)) { if($C ne"\n") { $paragraphs++; } } close(READFILE); print("Paragraphs: $paragraphs\n");

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  • scp all files starting with 'file' from a server

    - by user209691
    Hi, I use this command to copy all files whose names start with 'file' from a server. scp -vp me@server:/location/files* ./ But i got a 'No Match' error. probably Concerning the '' in the command. How can i protect the '' for ssh to understand that this refers to a list of files and not taking it as a filename. Thx August

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  • What is a good FAT file system for ARM7-TDMI

    - by Seidleroni
    I'm using the ARM7TDMI-S (NXP processor) and I need a file system capable of reading/writing to an SD card. There are so many available, what have people used and been happy with? One that requires the least amount of setup is best - so the less I have to do to get it started (i.e. write device drivers to NXP's hardware) the better.

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  • Reading Excel file with C# - Choose sheet

    - by Dänu
    Hey Guys I'm reading an excel file with C# and OleDB (12.0). There I have to specify the select statement with the name of the sheet I wish to read ([Sheet1$]). this.dataAdapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString); Is it possible to select the first sheet, no matter what name? Thank you.

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  • How do debug header file implemetation (its .cpp) in c++ using GDB

    - by zengr
    Hi, I have these 3 file in my program: sample1.h (method in sample1.cpp are defined here) sample1.cpp (all the actual implementations) demo.cpp (I am using the methods in sampe1.cpp here, and have included sample1.h) Now, I am using GDB to debug and I know the basic commands like "break lineno." or "break methodname". But, how do I debug the methods written in sample1.cpp? I tried: break "sample1.cpp:mymethod" but it did not work. Thanks

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  • Bash Read Array from External File

    - by jmituzas
    I have setup a Bash menu script that also requires user input. These inputs are wrote (appended to) a text file named var.txt like so: input[0]='192.0.0.1' input[1]='username' input[2]='example.com' input[3]='/home/newuser' Now what I am trying to accomplish is to be able to read from var.txt from a script kinda like this: useradd var.txt/${input[1]} now I know that wont work just using it for an example. Thanks in Advance, Joe

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  • Ruby: execute a binary file in memory?

    - by John
    Is it possible to read binary in ruby file and execute it directly in memory? for example something like this: x = IO.read('/bin/ls') execute(x) I tried system(x) but it doesn't work ArgumentError: string contains null byte

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  • htaccess url rewrite,remove querystring and file extension

    - by Miranda
    my current url is something like: http://something.somedomain.com/about_us/profile.php?tab1=about_us a more complicated on is: http://something.somedomain.com/exchange_hosting/feature/outlook_web_access.php?tab1=exchange_hosting&tab2=feature&tab3=outlook_web_access i want to make them shorter: http://something.somedomain.com/about_us/profile http://something.somedomain.com/exchange_hosting/feature/outlook_web_access my .htaccess ################################# # Directory Indexes # ################################# DirectoryIndex index.php ######################################### # REWRITE RULES # ######################################### RewriteEngine On RewriteBase / Options +FollowSymlinks <IfModule mod_rewrite.c> #not a file RewriteCond %{REQUEST_FILENAME} !-f #not a dir RewriteCond %{REQUEST_FILENAME} !-d #this dosen't work #RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)$ /$1.php?tab1=$0&tab2=$1 </IfModule> # END #

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