nawk Wert einer Variablen zur 2. Spalte eines Files addieren


 
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# 1  
Old 10-07-2008
nawk Wert einer Variablen zur 2. Spalte eines Files addieren

wie kann ich zu dem 2. wert eines files den wert einer variable hinzufügen bei nawk?

ich habe folgendes:

nawk '{system("echo "$1" "$2+22)}' filename

das funktioniert -> so wird beim zweiten wert 22 hinzugezählt!

ich möchte aber nicht 22 hinzufügen sondern den wert, der in der variablen itest steht! wie mache ich das?

so funktionierts nicht:

declare -i itest=22

nawk '{system("echo "$1" "$2+${itest})}' filename

wie geht es, dass ich zu jedem 2. wert des files den inhalt meiner variablen hinzufüge?
# 2  
Old 10-07-2008
I have following problem: when I use this command - it works fine:

nawk '{system("echo "$1" "$2+22)}' filename

but when I want to add to the second column of the file (filename) the content of the variable itest I get an error! how can I add the content of the variable itest to every value of the second column of the file?

the following doesnt work:

declare -i itest=22

nawk '{system("echo "$1" "$2+${itest})}' filename

can someone help me?
# 3  
Old 10-07-2008
Code:
nawk -v itest="22" '{print $1 " " $2+itest)}' filename

Regards
# 4  
Old 10-07-2008
it works after 4 hours without solution! Thank you for your help!
# 5  
Old 10-07-2008
I want to make a bash script and declare my variables at the beginning of my programm with all my commands!

#!/usr/bin/bash

declare -i inoargs=0
declare -i iusedpseudo=0
declare -r filestart="map"
declare -r fileend=".out"
declare -r command1="`/usr/bin/tail -1 $1${fileend} | awk '{print $2}'`"

while [ $# -gt ${inoargs} ]
do
iusedpseudo=0
# now file $1${fileend} will be created with: do something > $1${fileend}
iusedpseudo=${command1}
echo ${iusedpseudo}
shift
done


I get an error because when i declare command1 the file $1${fileend} does not exists! how can i solve this problem, that i can declare the command at the beginning of the script?
# 6  
Old 10-07-2008
Wenn du eine verschiedene Frage hast, geht es besser eine neue "Thread" zu anfangen...

Verändern bis so:
Code:
declare -r command1="/usr/bin/tail -1 $1${fileend} | awk '{print $2}'"
# keine "backtick"
...
...
iusedpseudo=`${command1}`
# steck die backticken hier ein.


Last edited by otheus; 10-07-2008 at 12:50 PM.. Reason: clarification
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