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Thanks a TON Neo for giving me this GREAT honor :b:, its always an honor to be a member of this GREAT site :b:, whatever I know in scripting/*nix I learnt from this forum/site and whatever way or...

Today, I am very pleased to announce that the Moderator of the Year Award, 2019 has two very deserving winners.

Ravinder Singh (RavinderSingh13) and Victor Berridge (vbe)

Victor (vbe) has...

I see....

In my view, this is the "problem" ....

Commercial organizations continue to show things about A.I. applications which make consumers "happy" and "feel good", like the examples you...

Hello All,

While googling on regex I came across a site named Regulex Regulex：JavaScript Regular Expression Visualizer (https://jex.im/regulex/#!flags=&re=%5E(a%7Cb%7Cc)(%5B%5E%40%5D*)%40(.*))
I...

DB 3 is down.

In principle you can, but sed uses a lot of characters with a special meaning to the shell. Therefore, to protect the shell from reading it, sed-commands are usually enclosed in single-quotes:

sed...

No surprise "it is not working" as none of your attempts is addressing your problem if at all syntactically correct.



awk 'FNR == NR {SRCH[$3 "-" $2]; next} $2 in SRCH {print ">" $0}' FS="[]-...

For a simple concatenation of the lines, consider paste
paste file1 file2More flexible is the shell
while read L1 <&3 && read L2 <&4
do
echo "$L1 #### $L2"
done 3< file1 4< file2

Try alsoawk '{ORS=/\/[nN]ode/?"\n":""}1' file

I would augment the previous sed solution with a loop, and replace the line end with a space.
sed -e '/^[^0-9]/{' -e ':L' -e '$!N; s/\n\([^0-9]\)/ \1/; t L' -e '}' fileAs multi-line
sed '...

Two basic awk things to think of in this kind of situation:

If the default FS is used, test $1 instead of $0. That way you are not dependent on leading spaces that may or may not be there.
If...

Some of the solutions will fail if there is a single last line that does not start with a number:
862.0
DIAPHRAGM, WITHOUT MENTION OF OPEN WOUND INTO CAVITY
862.1
DIAPHRAGM, WITH OPEN WOUND INTO...

If the sed command fails, the above suggestion will destroy the input file.
sed ... sourcefile > tmpfile && cp tmpfile sourcefile && rm -f tmpfile
will only replace sourcefile if the sed succeeded...

The condition ? trueaction : falseaction exists in awk like in C.
str gets the concatentation of str "\n" $0 if str is not null (undefined, empty, or 0), otherwise it gets $0.
$0 is the entire...

Unfortunately, the standards say the results are unspecified if you have both a number and a g flag for a sed substitute command. On some systems, you will get what you showed above. On others,...

There are huge differences between ksh (and bash ) test expression and [ expression ] versus [[ expression ]].

The test and [ are the names of utilities (usually the same physical utility and...

Here, let me google that for you (http://lmgtfy.com/?q=linux+expect)

If I understand correctly:

$ cat a.sql
select &1 from dual;
$ field_name=sysdate
$ sqlplus -s '/ as sysdba' <<EOF
> @a.sql "$field_name"
> EOF
old 1: select &1 from dual
new 1: select...

@anbu: Novel approach, to force the number into string context. It brings with it, however, that it is implementation dependent whether locale is used to convert it and whether a "." is part of the...

Since the shell does not need to expand anything with them, there's no reason to use double quotes.

Habitually using double quotes when shell expansion isn't intended will eventually lead to a...

@anbu: you can do this more reliably, using RS= instead of RS='\n\n'. Also, standard awk can only use a single character for RS.

Actually it should be...

When you have a pipeline, the standards allow (but do not require) the elements of the pipeline to be in different shell execution environments. If your system does put them in different shell...

@anbu, you are right it could also be done from left to right instead of right to left (in fact the = "anchor" provides mini-right to lefts) The [^=] might not even be required and an asterisk gets...

You couldn't miss aiming at the center of a broad target like a +- 30 day month, even if one month's length is off by a day in leap years. The center is the 15th of each month, or the average of...