What is nr in awk command?
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hi i have directories within the directory. Now i want to copy the directory along with all directories included in it to one location by using copy command? what is the command
How to view the hidden files in /etc directory?
what is virtual machine?
What are some command words?
What is the protocol for PING command?
Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?
Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?
what does the command 'wc' do?
how many types of file in unix?
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distinguish between paging and swapping?
How do you change file permissions and ownership in Unix?
what is the use of "test" command in unix?