WebSep 23, 2024 · In this article we would learn how to read a file in backward using MATLAB. For demonstration we would be using a file named test.txt with the following contents: Example 1: Matlab % MATLAB program for read text file % % Open the file fp = fopen ('test.txt', 'r'); % Move the file pointer to EOF fseek (fp,0,'eof'); % Get the position of File … Webawk -v OFS='\t' '{print NR, $0}' file sort -k1,1nr cut -f2-is IMHO the cleanest way to write that as it's still using mandatory POSIX tools but is using awks OFS instead of hard-coding a …
Reading a text file backwards in C - Stack Overflow
Web1. Open the file for read, call fseek () to seek to the end of the file, then call ftell () to get the length of the file. Alternatively you can get the file length by calling stat () or fstat (). 2. Allocate a buffer pointer to the file size obtained in #1, above. 3. WebRead one byte using fgetc. If that byte is an EOL then the last line is a single empty line and you have it. Use fseek again to go backwards two bytes and check that byte with fgetc. … smart luggage good morning america
c++ - Read File Backwards DaniWeb
WebJul 4, 2024 · Approach: Create an input file stream object and open file.txt in it. Create an output file stream object and open file2.txt in it. Read each line from the file and write it in file2. Below is the C++ program to read contents from one file and write it to another file: C++ #include using namespace std; int main () { WebYou could read the file into an array, and copy it into a new array, and put the new data in backwards 0 0 vijayan121 1,152 11 Years Ago If the file is small enough, read it into a std::vector and use the container's reverse_iterator. If it is big, either read it in chunk by chunk WebThe C library function int fseek (FILE *stream, long int offset, int whence) sets the file position of the stream to the given offset. Declaration Following is the declaration for fseek () function. int fseek(FILE *stream, long int offset, int whence) Parameters stream − This is the pointer to a FILE object that identifies the stream. smart lte home wifi