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Try:
awk '
BEGIN {
FS=OFS="|"
print "col1|col2"
}

FNR==n+1 {
print $p1, $p2
}
' n=1 p1=1 p2=2 file1 p1=2 p2=3 file2 p1=3 p2=2 file3

col1|col2
a|1
3|C
D|4

awk -v answer42='col1|col2' '
BEGIN {
FS=OFS="|"
print answer42
}

FNR==universe+1 {
print $mouse1, $mouse2
}
' FS=\| OFS=\| universe=1 mouse1=1 mouse2=2 file1 mouse1=2...

Another approach:
awk '{A[$1]=$0} $1==40{print A[20] " AND " $2 RS A[30]} $1!~/^[234]0$/' file



---
or
awk '{A[i=$1]=$0; $1=x} i==40{print A[20] " AND" $0 RS A[30]} i!~/^[234]0$/' file


...

Try this awk script:

awk '
{
values=split($2,V,";")
sample[NR]=$1
for(i=1;i<=values;i++) {
if(!(V[i] in CI)) {
CI[V[i]]
CH[++col]=V[i]
}
...

Hi looney,
Note that the above code changes the first line of input:
Login;Statusto:
Login;Enabled
but the desired output showed that that line was not supposed to be changed.

To meet the...

I usually prefer if-then-else-fi
if [[ -d "$dir" ]]; then echo "Dir exists $dir"; else echo "dir $dir doesnot exists"; exit 0; fiand think that multi-line is better readable and maintainable....

Still not clear what you want.

Just guessing: [[ -f '$dir/$filename*' ]] does not supply your filename.
man bash:

You could try to use [ ... ]. But, some caveats are to be considered:...

Thanks a lot RudiC for this nice script. I know it is some days now for this post but wanted to add explanation here so that everybody could take advantage of this nice code snippet.

awk '
NR ==...

perl # perl binary
-M strict # use strict
-M List::Util=sum # use List::Util qw(sum).To know what the subroutine sum is.
-w # use...

Hello looney,

Could you please go thorugh following and let me know if this helps you.

if ($1+0) sub ($1 FS, _) #### In if condition it is mentioned $1+0, so by adding 0 to $1's value we...

This seems to cure the failures you quote except for the processing speed - I'm afraid you can't do faster...awk '
NR == FNR {a[$1] = $2
next
}
...

Should your system allow for multibyte input and output separators, try
awk '!(/phpinfo/ && /hlight/)' RS="\?>\n" ORS="?>\n" file

Some sed versions do have the \< and \> boundary anchors; they do not consume a character. And not only allow a /g in one go but also make the substitution easier.
sed 's#\<[0-9]/#0&#g'--
Just...

awk '!A[$0]++' file

Hello looney,

So when you do print xit will print actually a NULL value(which is in other words will be a new line only because there is NO value for vriable named x here). But when we do print,...

Hello andy391791,

Following may help you in same.

awk '{gsub("\n[^\n]*/",","); #### gsub, it's an awk's in-built keyword which is used for global substitutions, it's format is...

Another approach:
awk '{for(i=2; i<=NF; i++) sub(".*/",x,$i); sub(OFS,FS)}1' FS='\n' OFS=, RS= ORS='\n\n' file



--edit--
Yet another option:
awk '{gsub("\n[^\n]*/",","); sub(",","\n")}1' RS=...

sed "s/.*/'&';/" file

The general form of the command:
sed -n "/$(date '+^%a %b %d')/,\$ s/WARNING: await timed out/&/p"
is:
sed -n "address1,address2 s/pattern/replacement/flags
In this case address1 is a basic...

If you're using awk anyway, why not do it all in awk?
zcat /a/b/c/file.gz |awk 'length > m{m = length}END{print m}'
gets rid of the need for sort, head, and cut.

Hello looney,

Not completely sure about your whole requirement, could you please change pth/"tgt_file_name"CURR_DATE"_"NR%10 to following into your code and let me know how it goes please.

...

Or awk '{printf "%*.*f\n", FL, FL-1-length(int($1)), $1}' FL=10 file
234.234000
12.4000000
3456.56780

Hi, in bash/ksh93/zsh :
num=23544.2
num10=$(printf "%-10s" "$num")
printf "%s\n" "${num10// /0}"

I assumed you mean a value in a variable in a shell script, and that the number length including...

You could also write that so it only evaluates field 3 once:
awk '!($3 ? A[$2,$1]++ : A[$1,$2]++)' infile

Any attempts/ideas/thoughts from your side?

---------- Post updated at 11:33 ---------- Previous update was at 11:11 ----------

Howsoever, tryawk '{print $0 ORS > "file" 2- ($2 ~ /dn:...