linux 查看文件32位

xxd -l 4 -s OFFSET filename

xxd -l 4 -s 10 example.bin

od -An -tx4 -j OFFSET filename

od -An -tx4 -j 10 example.bin

value1: 12345678
value2: 0xABCDEF01

grep 'value1:' data.txt | awk -F: '{print $2}' | tr -d '[:space:]' | xargs printf "%d\n"
grep 'value2:' data.txt | awk -F: '{print $2}' | tr -d '[:space:]' | xargs printf "%d\n"

#include <stdio.h>
#include <stdint.h>

int main() {
    FILE *file = fopen("example.bin", "rb");
    if (file == NULL) {
        perror("Failed to open file");
        return 1;
    }

    uint32_t value;
    fseek(file, 10, SEEK_SET);  // 移动到偏移量10
    fread(&value, sizeof(value), 1, file);

    printf("Value at offset 10: %u\n", value);

    fclose(file);
    return 0;
}

gcc -o read_32bit read_32bit.c
./read_32bit