Explain ‘system calls’ with respect to unix commands?
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the difference between a soft link and a hard link?
What is an Environment Variable?
What is the size of time_t?
What is the general format of unix command syntax?
How do you create a file in UNIX
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Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance
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?
Give the command to display space usage on the UNIX file system.
What is the command to find hidden files in the current directory?
How do you find path of a directory? Give its syntax.
What Command is used to make a directory?
What is the Unix file system hierarchy?