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RULES OF THE UNIX AND LINUX FORUMS

For the latest version of the community rules (the official community rules page), please visit here. (https://www.unix.com/misc.php?do=cfrules)


No flames,...

Take a look at:
I'm new to Unix. Which books should I read? - The UNIX and Linux Forums (https://www.unix.com/im-new-unix-books-should-i-read/)

Linux and most software it runs is under the GNU general public license. It's not UNIX because it's written from scratch, not derived from ancient UNIX source. It's also not UNIX by declaration: ...

There in no any UNIX OS now. Only unix clones. Redhat and Ubuntu are linix OS-es and so unix clones. They are both good choices for learning unix (but I believe you need only one distributive for the...

Start with the awk oneliners site:

http://www.pement.org/awk/awk1line.txt

Get the original Awk book by the program authors:

The AWK Programming Language...

How about this:
sed '1,10d' file*

First produce a diff of two files, say file1 is the old copy, file2 is the newer copy.

diff file1 file2 > delta.diff

Then you can apply the diff to file1 by using the patch command:

patch...

You can use the comm command.
# cat test1
1
2
3
# cat test2
1
2
3
4
5
# comm -13 test1 test2
4
5
#

The whole idea is flawed. What is wrong with


[mute@geek ~/test]$ awk -F"|" 'NR == 1' students.txt
101|suresh|45|25|45|chennai


You are reading by redirection in bash each line into $line,...

firstly I read through while loop....see that done < file name...

---------- Post updated at 12:38 PM ---------- Previous update was at 12:36 PM ----------

awk -F "|" '{if ( NR == 1 ) print $0...

Dear all,

I am preparing the RHCE Linux certification and I need to practise, practise and practise linux administration ...I wold be very pleasen if somebody lists here online training resources...

Try something like...$ tail -1 file1
2011-05-17

$ if [[ $(tail -1 file1) = $(date '+%Y-%m-%d') ]]
> then
> echo today
> fi
today

$