Search results
Results from the WOW.Com Content Network
In computing, redirection is a form of interprocess communication, and is a function common to most command-line interpreters, including the various Unix shells that can redirect standard streams to user-specified locations. The concept of redirection is quite old, dating back to the earliest operating systems (OS).
Yes (stdin, stdout, stderr, stdout+stderr) Yes (via 4DOS.INI / NDOS.INI file, startup parameters, environment variables, SETDOS command) Yes (automatic \AUTOEXEC.BAT for primary shell and 4START.BTM / 4START.BAT as well as 4EXIT.BTM / 4EXIT.BAT for any shell, or explicitly via /P , /P:dir\filename.ext or /K startup options)
[2] dup3() was formally added to Linux kernel version 2.6.27 (glibc support is available on version 2.9 and above). int dup ( int oldfd ); int dup2 ( int oldfd , int newfd ); The former allocates the first available descriptor, just like open() behaves; an alternative way to duplicate a file descriptor to an unspecified place is the fcntl ...
The Linux tee command was written by Mike Parker, Richard Stallman, and David MacKenzie. [5] The command is available as a separate package for Microsoft Windows as part of the UnxUtils collection of native Win32 ports of common GNU Unix-like utilities. [6] The FreeDOS version was developed by Jim Hall and is licensed under the GPL. [7]
#!/usr/bin/env python import sys # Save the current stdout so that we can revert sys.stdout # after we complete our redirection stdin_fileno = sys. stdin stdout_fileno = sys. stdout # Redirect sys.stdout to the file sys. stdout = open ("myfile.txt", "w") ctr = 0 for inps in stdin_fileno: ctrs = str (ctr) # Prints to the redirected stdout sys ...
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
The Bash command-line completion system is very flexible and customizable, and is often packaged with functions that complete arguments and filenames for specific programs and tasks. Bash's syntax has many extensions lacking in the Bourne shell. Bash can perform integer calculations ("arithmetic evaluation") without spawning external processes.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!