10-31-2012
NR and FNR are special variables in awk. NR means the total number of records processed, FNR is the number of records read from the current file. When they are identical, that means you are in the very first file and nowhere else.
I use that to load the list of stuff to translate into awk, stuffing it into an array like T["AAA"]="-10" Then the 'next' tells it to skip to the next line, preventing it from running any of the code below.
For all the other files, it checks if the array T has anything with an index identical to column 8. $8 in T ...and if it does, it just overwrites column 8 with the contents of the array. $8=T[$8]
Then it prints the entire line to the file FILENAME ".aaa". FILENAME is a special variable which names the current file. Putting two strings together like this concatenates them. So if the current file is file1, it will write to "file1.aaa".
This User Gave Thanks to Corona688 For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm building a file with sql delete statements. I need to print the single quotes for the where clause.
i.e.
delete from Command where CommandName = 'SomeName';
I have the following in my script
input=$(pwd)/Cmnd.csv
i=0
while read line
do
if test $i -ge 1;
then
... (2 Replies)
Discussion started by: orahi001
2 Replies
2. Shell Programming and Scripting
How do I access one of the indices in array tst with the code below?
tst=sprintf("%5.2f",Car / 12)
When I scan thru the array with
for ( i in tst ) { print i,tst }
I get the output of:
vec-7 144
But when I try this in the END
print tst
It looks like it's not set.
What am... (6 Replies)
Discussion started by: timj123
6 Replies
3. UNIX for Dummies Questions & Answers
Hi all,
It is a very stupid problem but I am not able to find a solution to it.
I am using awk to get a column from a file and I want to get the output field in between single quotes. For example,
Input.txt
123 abc
321 ddff
433 dfg
........
I want output file to be as
... (6 Replies)
Discussion started by: gauravgoel
6 Replies
4. Shell Programming and Scripting
i want to print ' symbol using awk i tried:
awk '{print " ' "}'
awk '{print "\' "}'
both not work please help me. (2 Replies)
Discussion started by: RahulJoshi
2 Replies
5. Shell Programming and Scripting
Actually I got a list of file end with *.txt
I want to use the same command apply to all the *.txt
Thus I try to find out the fastest way to write those same command in a script and then want to let them run automatics.
For example:
I got the file below:
file1.txt
file2.txt
file3.txt... (4 Replies)
Discussion started by: patrick87
4 Replies
6. Shell Programming and Scripting
cat a | awk -F";" '{print "update db set column=' "$2" ' where column1=\""$1"\";"}' > ip-add.sql
Hi! I'm a new user!
i've an urgent help on the single apex use in the double apex print string
The apex between che "$2" should not be interpreted, but....how?!
I'm trying to use \ but don't work... (1 Reply)
Discussion started by: Re DeL SiLeNziO
1 Replies
7. Shell Programming and Scripting
I am creating a report in groff and need to format data from a file into a
table cell.
Sample data:
dador,173323,bpt,jsp,39030013338878,1
dador,173323,brew,jsp,39030013338860,1
dador,173323,brew,jsp,39030013339447,1
dador,173323,brew,jsp,39030013339538,1
I would like to build a table... (12 Replies)
Discussion started by: Bubnoff
12 Replies
8. Shell Programming and Scripting
How do you print out a single quote character in AWK? Using the escape character does not seem to work.
{printf "%1$s %2$s%3$s%2$s\n" , "INCLUDE", " \' ", "THIS" }
does not work. Any suggestions? (6 Replies)
Discussion started by: cold_Que
6 Replies
9. Shell Programming and Scripting
I have the following code:
print @testarray;
which returns:
8
8
8
9
How do I return the array like this:
The output is: 8, 8, 8, 9 (5 Replies)
Discussion started by: streetfighter2
5 Replies
10. Shell Programming and Scripting
I have test.sh file as below :
set -A IDARR $ID
echo | awk -f test.awk -v TempArr="${IDARR
}"
I have test.awk file as below :
BEGIN {
Flag = 1;
}
{
print "Hello";
for(i in TempArr)
{
print i;
}
} (9 Replies)
Discussion started by: nes
9 Replies
LEARN ABOUT OPENSOLARIS
igawk
IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWgawk |
+--------------------+-----------------+
|Interface Stability | Volatile |
+--------------------+-----------------+
NOTES
Source for gawk is available on http://opensolaris.org.
Free Software Foundation Nov 3 1999 IGAWK(1)