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awk -F, '
# if NF not equal to 7
NF != 7 {
# If ORS not equal to " " set ORS = " " else set ORS = RS (newline by default)
ORS = ( ORS != " " ? " "...

and for the same reason, A[$1] alone defines an (empty) element; no reason to assign a value to it =1.

They're supposed to be efficient when you use them like this. They're not straight arrays, they're some sort of hash or tree structure (implementation dependent).

You can get rid of the cat in...

Try this then:printf "%.0f\n", 2147483648

I recently learned otherwise. Recent versions of mawk have borrowed this useful feature, possibly because some Linux distributions have taken to mawk as a faster substitute for GNU awk.

mawk-20121129 is the latest version. You can download the sources and easily build it on CentOS 6.

From the mawk changelog:

20121129
...
+ add systime and mktime functions
...
+ integrate strtime function (patch by Dominic Letz).

Regards,
Alister

It may count escape sequences as part of the string's length, and so assume it's longer than it actually is when printed.

Assumed your filename is "file".
With sed:
factor="3,6"
trial="YES,18,1.635"
sed '/'"$factor"'|/ s/$/|'"$trial"'/' < file > file.newWith the shell built-ins it becomes a bit long,
so a function...

Unfortunately, both of these examples only work if all possible values of factor are in file before you try to add a new trial. If you want to start with an empty file and add new entries (as well...

Using arrays would be one way:


#!/usr/bin/env ksh
# add a value to the array
function add_value
{
typeset i=0

i=${#values[@]} # current length
if (( $i >=...

try this:...

There is a difference:
% touch 0 1 2 3

% ls | awk 'x = $0 {print x}'
1
2
3

% ls | awk '{x = $0 ; print x}'
0
1
2
3

Assignment is an expression in awk. These two commands are the same...

They are not identical.

$printf '%s\n' 0 1 '' 'not empty' | awk '{x = $0; print x}
0
1

not empty
$printf '%s\n' 0 1 '' 'not empty' | awk 'x = $0 {print x}
1
not empty

In AWK, the value...

It's because, when run with xargs, the commands have no standard input connected. Usually it'd wait for input, either from your end or the other end, but now it connects, tries to read from the...

It seems to have something to do with networking. Try
seq 1 | xargs -I DISCARD telnet example.com 3334 |cat