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# 8  
Old 09-30-2009
Smilie What about this one?
Code:
awk '{for(x=0;++x<=NF;)a[x]=a[x]?a[x]$x:$x}END{for(y=0;++y<=NF;)print a[y]}' FS= file

# 9  
Old 09-30-2009
Quote:
Originally Posted by danmero
Smilie What about this one?
Code:
awk '{for(x=0;++x<=NF;)a[x]=a[x]?a[x]$x:$x}END{for(y=0;++y<=NF;)print a[y]}' FS= file

Code:
this code is not working for me but radoulov code is working find because he is using the substr command ....
but my question is how I can set the FS variable to null FS="" using solaries 10??

BR
# 10  
Old 09-30-2009
Quote:
Originally Posted by danmero
Smilie What about this one?
Code:
awk '{for(x=0;++x<=NF;)a[x]=a[x]?a[x]$x:$x}END{for(y=0;++y<=NF;)print a[y]}' FS= file

The problem is that the null string as FS separator is treated differently in older AWK implementations.

From Effective GAWK Programming:

Quote:
There are times when you may want to examine each character of a record separately.
This can be done in gawk by simply assigning the null string ("") to FS. In
this case, each individual character in the record becomes a separate field.[...]
Traditionally, the behavior of FS equal to "" was not defined. In this case, most
versions of Unix awk simply treat the entire record as only having one field. (d.c.)
In compatibility mode (see the section “Command-Line Options” in Chapter 11), if
FS is the null string, then gawk also behaves this way
I mean:

Code:
zsh-4.3.10[t]% print abc | gawk '{while (++i<=NF) print "$"i, "is:", $i}' FS=
$1 is: a
$2 is: b
$3 is: c
zsh-4.3.10[t]% print abc | gawk --posix '{while (++i<=NF) print "$"i, "is:", $i}' FS=
$1 is: abc



---------- Post updated at 02:45 PM ---------- Previous update was at 02:43 PM ----------

Quote:
Originally Posted by ahmad.diab
[...]
but my question is how I can set the FS variable to null FS="" using solaries 10??
You already did it, but it has a different meaning for your AWK implementation.
And of course, you can install gawk on Solaris Smilie.
# 11  
Old 09-30-2009
Quote:
This solution provided by danmero is not working on solaries were my system can't take FS="" as null value???
Code:
awk '{z=length($0);split($0,a,"");for(x=0;++x<=z;)b[x]=b[x]?b[x]a[x]:a[x]}END{for(y=0;++y<=z;)print b[y]}' file

# 12  
Old 09-30-2009
Quote:
Originally Posted by danmero
Code:
awk '{z=length($0);split($0,a,"");for(x=0;++x<=z;)b[x]=b[x]?b[x]a[x]:a[x]}END{for(y=0;++y<=z;)print b[y]}' file

For older awk implementations split on null string is not special either Smilie
As far as I know only substr will work.
# 13  
Old 09-30-2009
Can't confirm but should work on Solaris base on awk man page Solaris Smilie
Let's see if will work for OP.
# 14  
Old 09-30-2009
Quote:
Originally Posted by radoulov
For older awk implementations split on null string is not special either Smilie
As far as I know only substr will work.
Code:
you are right radoulv I already test split function using null as a separator but without any use...
BR


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