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What does #!/ Bin sh do?
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solaris Run level?
why unix commands can be divided into internal and external commands?
Which command is used to find whether the system is 32 bit or 64 bit?
Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?
What is the use of egrep command in unix?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
7 Answers Alcatel, Cisco, Infosys, University Exams,
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
what are the different commands used to create files?
Name the unix command to find how many days the server has been up.
Which command is used to create a directory?
how will u execute a file in unix
Enlist some filename manipulation commands in unix.
Unix Commands 
