I tried to capture the output of pexpect in a file. Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56) [GCC 4.4.3] on linux2
I want to know how long a program running, so I tried \"/usr/bin/time ./program > /dev/null\". But soon I found it dis开发者_如何转开发plays program\'s output to stderr. I tried \"/usr/bin/time ./prog
From this perldoc page, To capture a command\'s STDERR and STDOUT together: $output = `cmd 2>&1`; To capture a command\'s STDOUT but discard its STD开发者_开发技巧ERR:
#include <iostream> #include <fstream> using namespace std; void foo(){ streambuf *psbuf; ofstream filestr;
What I\'d like to achieve is the laun开发者_StackOverflow社区ch of the following shell command: mysql -h hostAddress -u userName -p userPassword
C开发者_如何学Can a process \'foo\' write to file descriptor 3, for example, in such a way that inside a bash shell one can do
With the open command in Perl, you can use a filehandle. However I have trouble getting back the exit code with the open command in Perl.
I compiled a Java program as javac t1.java > a in order to redirect the error messages to file a. But a doesn\'t have the error contents (they still appear in the terminal). The command is exec
I tried to redirect the output of the time command, but I couldn\'t: $time ls > filename real0m0.000s
I\'m开发者_运维技巧 building an opensource project from source (CPP) in Linux. This is the order: