Here I got some UNIX problem..Hope you can help.. 1)Write a UNIX command to concatenate the contents of all files in your present directory and to put them into a new file named 'all.txt' 2)Which command is used to remove a link of a file? 3)(i) Write a single command line to search for the files with the name "mymemo" from the current directory onwards and to print the current pathname of all files found. List down the keystroke for 1) search for the specified pattern in the forward direction.If the end of the file is reached, the search wraps around. 2) search for the specified pattern in the backward direction.If the top of the file is reached, the search wraps around.

I'd recommend you try and do some of your homework yourself.

I already go through and try out most of the question....but the question above I flip through whole of my book...but still cannot find out the command the suit for it ...Hope somebody can provide me some idea... I really eager want to know the answer.... really thanks:)

OK: I'll do the first one. This command places all the files with a txt extension, places it in a file, and the 'xargs cat' does the content thing. Change as you see fit. ls *.txt > file xargs cat < file > all.txt Oh, and a hint for 3) man find Regards, Nails

I was going to suggest cat *.* > all.txt though the more different approaches you try out the better. The last two sound like vi questions.

I go to flip through another book online....I think this book is really explaining good in concept and well written and I find the answer...Am I correct? 2)rm 3)(i) find . -print 1)/ 2)?