c see if file exists

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The C language detects if the file exists int __cdecl access (const char *, int);

Recently write code, encountered many places need to determine whether the file exists. Online methods are also strange, "the schools of contention."fopen Way open more see, there are other ways to determine whether the file exists, because other

Use BashShell to check whether a file exists

In most cases, you can use test commands to test the conditions. For example, you can compare strings, determine whether a file exists, and whether the file is readable. The following article describes how to use BashShell to check whether a file

Determine whether a file or directory exists in C/

A simple way to determine whether a file or directory exists 1.c++ in C + +: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open (filename,ios::in);if (!_file){cout}Else{cout}return 0;}2. Ways to use

Determine whether a file or directory exists in C/

http://blog.csdn.net/roger_77/article/details/1538447/A simple way to determine whether a file or directory exists 1.c++ in C + +: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open

Determine whether a file or directory exists in C/

From: 1538447/1.c++ a very simple way: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open (filename,ios::in);if (!_file){cout}Else{cout}return 0;}2. Ways to use the C-language library:Name of

C language file operation functions such as fgetc ()/fputc ()/fgets ()/fputs ()/fread ()/fwrite ()/fopen ()/fclose ()

Fgets (read a string from the file)Related functions: open, fread, fscanf, GETCHeader file include Define the function char * fgets (char * s, int size, file * stream );Function Description: fgets () is used to read characters from the file referred

Use a shell script to monitor whether a process exists or not, the instance that is started comes with an if judgment detail condition

#!/bin/shPs-fe|grep processstring |grep-v grepIf [$?-ne 0]Thenecho "START process ..."Elseecho "Runing ..."Fi#####Processstring represents a process feature string that can be queried for a unique process's characteristic string0 indicates the

C-based file operations (file*, FStream, WindowsAPI)

C-based file operations In ANSI C, the operation of the file is divided into two ways, that is, streaming file operations and I/O file operations, respectively, described below. One, streaming file operation The file operations in this way have an

PHP uses curl to determine if a remote file exists code

Judging remote Files function Check_remote_file_exists ($url) { $curl = Curl_init ($url); Do not retrieve data curl_setopt ($curl, Curlopt_nobody, true); Send Request $result = curl_exec ($curl);

C. Determine whether a file exists

I forgot what I saw there. Write it here and record it.   1) Access2) fopen3) stat fstat? >>>>>Function access should be used. The header file is Io. H. prototype: Int access (const char * filename, int amode ); If the amode parameter is 0, the

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