Unix Interview Questions and Answers
Question: What is a pipe and give an example?Answer: A pipe is two or more commands separated by pipe char '|'. That tells the shell to arrange for the output of the preceding command to be passed as input to the following command.Example : ls -l | pr The output for a command ls is the standard input of pr. When a sequence of commands are combined using pipe, then it is called pipeline. |
Save For Revision
Bookmark this item, mark it difficult, or place it in a revision set.
Log in to save bookmarks, difficult questions, and revision sets.
Is it helpful? Yes No
Most helpful rated by users:
- How are devices represented in UNIX?
- What is 'inode'?
- What difference between cmp and diff commands?
- Explain the steps that a shell follows while processing a command.
- Brief about the directory representation in UNIX