I need a script that prints a blank line after finding that the next lines first field doesn't match the current lines first field.
I really want to do this in awk to improve my own knowledge but the best I can come up with is a bash script. I'd finally like to understand how awk processes a file
Here's the bash script so you can see what I'm trying to achieve:
Code:
COUNT=$( cat $1 | wc -l )
for ((a=1; a <= $COUNT ; a++))
do
let "n=a+1"
NEXT=$( awk -F':' -v L=$n 'NR == L { print $1 }' $1 )
LINE=$( awk -F':' -v L=$a 'NR == L { print $0 }' $1 )
CURR=$( awk -F':' -v L=$a 'NR == L { print $1 }' $1 )
echo $LINE
if [[ "$NEXT" != "$CURR" ]]
then
echo " "
fi
done
Hello,
I need experts help in converting the below tcl function to korn shell function equivalent.
proc lsNetMaskToBits {mask} {
set dw ; # Top N bits set
set dw 0x ; # Make sure it's hexadecimal, else XOR fails.
puts "lsNetMaskToBits dw $dw"
set dw ; # Complement => low 32-N bits... (1 Reply)
I always find BASH easier than ksh. At my home, i have written this bash script. I am finding it hard to write its equivalent in ksh, any suggestions?
######################################
#return seconds since `00:00:00 1970-01-01 UTC' (a GNU extension)... (1 Reply)
Hi,
I 'd like to translate this command from awk to findstr on Windows DOS
FILE:
str1 server1 a
str1 server2 a
str2 server1 b
str2 server2 b
Awk command:
awk ' $1 ~/str1/ { print $2, $3 } ' file.txt
OUTPUT:
server1 a
server2 a
Thanks, (1 Reply)
Hi all,
Can someone tell me what's the (g)awk equal of this simple regex to find ip addresses in urls:
egrep "^http://{1,3}\.{1,3}\.{1,3}\.{1,3}(:{1,5})?/"Input:
http://10.0.0.1/query.exe
http://11y10x09w:80/howaboutme
http://192.168.100.190:1234/takeme.gpg
Output:... (8 Replies)
Hello,
I searched online; it seems that perl use $NR as NR in awk; however it does not work for me. For example, how to re-write the following awk using perl:
awk '{ print NR}' inputfile---------- Post updated at 01:55 PM ---------- Previous update was at 12:49 PM ----------
I found... (2 Replies)
Hi all !
whether anyone in forum knows what awk will use while printing number of fields in file(NF) ?
for example
awk END'{print NF}' file
prints number of columns in file
if anyone knows equivalent code in C kindly share or explain logic behind it (8 Replies)
Hi all
Does anyone know Java-Arrays.binarySearch function equivalent in awk
I tried like this but it's not correct one,it just returns array index if and only when searched value available in array, for some reason if searched value not found then I want to return upper nearest neighbour index.... (1 Reply)
Hello. I wrote some code for an awk command but I want to learn to turn it into an awk script but am stuck. I have a file (data.csv) that has the following data:
ADD,1,3,5,8,10,11,54
SUB,1,2,3,4
ADD,15,18,21,42,37
ADD,1,1,1,0,0,3,16
ADD,4,1,8,0,4,6,13,16,17,20,8,6,4
SUB,13,8If the line... (5 Replies)
02-11-2008
