what is fseek in linux?
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fseek(3) - Linux man page The fseek() function sets the file position indicator for the stream pointed to by stream. ... A successful call to the fseek() function clears the end-of-file indicator for the stream and undoes any effects of the ungetc(3) function on the same stream.
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fgets() prototype char* fgets(char* str,int count,FILE* stream); The fgets() function reads a maximum of count-1 characters from the given file stream and stores them in the array pointed to by str . The parsing continues until the end of file occurs or a newline character (\n) is found.
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['lscpu command.', 'cat /proc/cpuinfo.', 'top or htop command.', 'nproc command.', 'hwinfo command.', 'dmidecode -t processor command.', 'getconf _NPROCESSORS_ONLN command.']
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fgetc() is used to obtain input from a file single character at a time. This function returns the number of characters read by the function. It returns the character present at position indicated by file pointer. After reading the character, the file pointer is advanced to next character.
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fgdump is a newer version of the pwdump tool for extracting NTLM and LanMan password hashes from Windows. It is also capable of displaying password histories if they are available. It outputs the data in L0phtCrack-compatible form, and can write to an output file.
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fdisk also known as format disk is a dialog-driven command in Linux used for creating and manipulating disk partition table. It is used for the view, create, delete, change, resize, copy and move partitions on a hard drive using the dialog-driven interface.
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The C library function int feof(FILE *stream) tests the end-of-file indicator for the given stream.
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DESCRIPTION. The ftok() function returns a key based on path and id. The function returns the same key for all paths that point to the same file when called with the same id value. If ftok() is called with different id values or path points to different files on the same file system, it returns different keys.
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hwclock command in Linux with examples. hwclock also called Real Time Clock (RTC), is a utility for accessing the hardware clock. The hardware clock is independent of the OS(operating system) you use and works even when the machine is shut down. The hardware clock is also called a BIOS clock.
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FDK (Function Display Key) - The variable function keys down either side of the monitor.
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DESCRIPTION top. The fdopen() function shall associate a stream with a file descriptor. The mode argument is a character string having one of the following values: r or rb Open a file for reading. w or wb Open a file for writing. a or ab Open a file for writing at end-of-file.
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fseek is a C function belonging to the ANSI C standard library, and included in the file stdio. ... Its purpose is to change the file position indicator for the specified stream. Because fseek uses 32 bit values on many platforms it has a limitation of maximum 2 gigabyte seeks. fseeko64 would be used for larger offsets.
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The fgets() function reads at most n-1 characters from stream into the buffer pointed to by s.
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C fseek() function The fseek() function is used to set the file pointer to the specified offset. It is used to write data into file at desired location. Syntax: int fseek(FILE *stream, long int offset, int whence)
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The function read(2) is usually implemented as a system call to the operating system kernel. ... This means that the internal read(2) from fgetc(3) wouldn't just read a single character, but rather it'll try to get more for the sake of efficiency.
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SFC checks for and fixes corrupt system files. Check Disk (chkdsk) is a command line tool that checks the file system and physical hard drive. Error Checking is simply a GUI for the chkdsk command line tool.
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epoll is a Linux kernel system call for a scalable I/O event notification mechanism, first introduced in version 2.5. 44 of the Linux kernel mainline. Its function is to monitor multiple file descriptors to see whether I/O is possible on any of them.