exec

问题 I'd like to print every line of python script as it's being executed, as well as the log from the console as every line is being executed. For example, for this script: import time print 'hello' time.sleep(3) print 'goodbye' I'd like it to generate the following in the console: line 1: import time line 2: print 'hello' hello line 3: time.sleep(3) line 4: print 'goodbye' goodbye See below for my attempt import subprocess as subp python_string = """ import sys import inspect class SetTrace

问题 I'd like to print every line of python script as it's being executed, as well as the log from the console as every line is being executed. For example, for this script: import time print 'hello' time.sleep(3) print 'goodbye' I'd like it to generate the following in the console: line 1: import time line 2: print 'hello' hello line 3: time.sleep(3) line 4: print 'goodbye' goodbye See below for my attempt import subprocess as subp python_string = """ import sys import inspect class SetTrace

问题 I'd like to print every line of python script as it's being executed, as well as the log from the console as every line is being executed. For example, for this script: import time print 'hello' time.sleep(3) print 'goodbye' I'd like it to generate the following in the console: line 1: import time line 2: print 'hello' hello line 3: time.sleep(3) line 4: print 'goodbye' goodbye See below for my attempt import subprocess as subp python_string = """ import sys import inspect class SetTrace

问题 I have a weird issue that I've been stuck with for a couple of days now. I'm trying to generate a pdf in a Laravel app using chrome headless with this command google-chrome --headless --disable-gpu --print-to-pdf=outputfile.pdf http://localurl/pdf-html The command basically opens chrome in headless mode, navigates to the given url and prints it as pdf saving the file in the specified location. This command is working perfectly when run in my system's shell (I'm using Ubuntu 18.04). Now, my

问题 I'm trying to use execv() to allow me to read into an output file, outputfile.txt, from the terminal. The problem I'm having is that it won't work at all and I don't know if I'm using it correctly. My code so far: void my_shell() { char* args[2]; args[0] = "/usr/bin/tee"; args[1] = "outputfile.txt"; execv(args[0], &args[0]); } int main() { cout << "%"; //string input; pid_t pid, waitPID; int status = 0; pid = fork(); if (pid == 0) { my_shell(); } else if (pid < 0) { cout << "Unable to fork" <

问题 I'm trying to run a Python script from PHP using the following command: exec('/usr/bin/python2.7 /srv/http/assets/py/switch.py arg1 arg2'); However, PHP simply doesn't produce any output. Error reporting is set to E_ALL and display_errors is on. Here's what I've tried: I used python2 , /usr/bin/python2 and python2.7 instead of /usr/bin/python2.7 I also used a relative path instead of an absolute path which didn't change anything either. I tried using the commands exec , shell_exec , system .

问题 I'm trying to run a Python script from PHP using the following command: exec('/usr/bin/python2.7 /srv/http/assets/py/switch.py arg1 arg2'); However, PHP simply doesn't produce any output. Error reporting is set to E_ALL and display_errors is on. Here's what I've tried: I used python2 , /usr/bin/python2 and python2.7 instead of /usr/bin/python2.7 I also used a relative path instead of an absolute path which didn't change anything either. I tried using the commands exec , shell_exec , system .

问题 This is a homework problem. The task is to replicate the command: ls | wc -l in a C program using execlp , fork , and pipes. My Approach I think the problem can be solved this way: Create a pipe file: pipe.txt Create a child process using fork() Map the stdout of the child process to pipe.txt Execute ls using execlp This puts the output of ls into pipe.txt Inside of parent process Map the stdin of the parent process to pipe.txt Execute wc -l using execlp without giving any further arguments

问题 Here from output I want only json data with requestStatus Failed part only. remaining json data should be override each update/can be deleted. could you pls suggest me how can I get data which is only required. source Code: my source code looks like this. cmd := exec.Command(command, args...) cmd.Dir = dir var stdBuffer bytes.Buffer mw := io.MultiWriter(os.Stdout, &stdBuffer) cmd.Stdout = mw cmd.Stderr = mw // Execute the command if err := cmd.Run(); err != nil { log.Panic(err) } log.Println

问题 I'm using go's exec Run command to get command output, which works great when the command 'Stdout' field is set to os.Stdout , and the error is sent to os.Stderr . I want to display the output and the error output to the console, but I also want my program to see what the output was. I then made my own Writer type that did just that, wrote both to a buffer and printed to the terminal. Here's the problem—some applications change their output to something much less readable by humans when it