How to Redirect the Standard Input, Output, and ErrorStreams?

Answer Posted / manavalan

0 (zero) refers to the standard input & often abbreviated as stdin.
1 refers to standard output (stdout)
2 refers to standard error (stderr)

Redirecting Standard Error :

The 2 in 2> refers to stderr.

$ lsash /usr/bin 2> commands-error.txt


Redirecting both Standard Ouput & Standard Error.

Use 2>&1 Syntax to redirect standard error to the same location as standard output .


$ ls /usr2222/bin > command.txt 2>&1

Redirecting Both stderr & stdout at Once

$ ls /usr2222/bin &> command.txt

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is ipc a 610 class 3?

514


How to Debugg Semaphores?

1063


What are the various IPC mechanisms? Why is message passing costlier than semaphore?

541


What is ipc quality?

528


What are 3 ipc techniques?

510






How to Controll and Deallocate Shared Memory?

1097


What ipc 304?

524


What is ipc 620 standard?

549


How to obtain information about shared memory?

1059


What is Shared Access to a File?

1019


How to Create a FIFO?

1256


What is ipc in linux?

517


Explain Communication Between Parent and Child Processes?

1245


What are Pipes?

1174


What are the ipc techniques?

528