What is the command to compare two files in unix?
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if we create a file, in that 10 rows(means 1,2,....9,10 like). i want 7 row exactly, which command use in unix? plz send this question.
what do you understand by 'unix is a portable os'?
Who command in unix?
What is FIND, GREP and SED ? Could you please give me the difference between all the three? Where we use this commnands?
what are the different commands used to create files?
how many types of 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
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