c system get output
The output of system("date +%s") can not be stored in a variable as you tried. ... /bin/sh -c command , and returns after the command has been completed. ... To get time you could use functions in time.h System function returns ..., Ok, I was confused in my other answer. In any case, the philosophy in this answer is the same. You can use directly the popen function.
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 c system get output 相關參考資料
C: Run a System Command and Get Output? - Stack Overflow
You want the "popen" function. Here's an example of running the command "ls /etc" and outputing to the console. #include <stdio.h> #include ... https://stackoverflow.com command line - How to store system("date +%s) output to variable ...
The output of system("date +%s") can not be stored in a variable as you tried. ... /bin/sh -c command , and returns after the command has been completed. ... To get time you could use funct... https://askubuntu.com Get system command output in C program - Stack Overflow
Ok, I was confused in my other answer. In any case, the philosophy in this answer is the same. You can use directly the popen function. https://stackoverflow.com Get the output of system() in C - Stack Overflow
int variable; variable = system("stat-f %g /dev/console"); ... You need to use popen rather than system if you want to capture the output of a ... https://stackoverflow.com Getting output of a system command from stdout in C - Stack Overflow
You want to use popen . It returns a stream, like fopen . However, you need to close the stream with pclose . This is because pclose takes care ... https://stackoverflow.com How do I execute a command and get output of command within C++ ...
Getting both stdout and stderr (and also writing to stdin, not shown here) is easy peasy with ..... std::string cmd = scommand + " >> " + tmpname; std::system(cmd.c_str()); ... //C++11... https://stackoverflow.com How to capturs system() output - Unix.com
Hi, In my c program, i call the system("pgrep -c thttpd"); the return value is //-- 0 ... Third: To capture the standard output (or the the standard error) of a process run ... https://www.unix.com in C, Assigning output of system() to a variable - LinuxQuestions.org
I'm new to C and Linux and I am confused on how things work. I tried to search but I don't really know if I'm searching for the right thing ... https://www.linuxquestions.org linux C程序中獲取shell腳本輸出[轉載] - Jax 的工作紀錄
增強的system函數，能夠返回system調用的輸出; *; * @param[in] cmdstring 調用外部程序或腳本的命令串; * @param[out] buf 返回外部命令的結果 ... https://jax-work-archive.blogs Linux C程式呼叫外部程式的方法@ 立你斯學習記錄:: 痞客邦::
Linux C程式呼叫外部程式的方法1、system（執行shell 命令） 相關函數fork，execve，waitpid，popen 表標頭檔#include&lt;stdli. http://b8807053.pixnet.net |