03-09-2016
Hi yifangt, x is an unused variable (it is not a string, since there are no quotes around it), so it is equivalent to ""
so it can also be written as sub(/^@/, ""), which means delete the first @ of the record.
Using "" is probably clearer, so I would use that...
Last edited by Scrutinizer; 03-09-2016 at 03:45 PM..
This User Gave Thanks to Scrutinizer For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
:D dear members I have a good knowledge of gawk and seem to do quite well with it.. but I have never understood what the use of the rs and ors are for or how they are used.. i am thinking they are for seperating lines and paragraphs but i have absolutely no idea how to make it work, if that is what... (2 Replies)
Discussion started by: moxxx68
2 Replies
2. Shell Programming and Scripting
var1=`echo "emp,dept,salgrade" | awk -F, '{print NF}'`
count=1
while ;
do
i=`expr $count`
tname=`echo "emp,dept,salgrade" | awk -F, '{ print $(echo $i) }'`
count=$count+1;
echo ${tname};
echo $count
done
I want to store in tname=emp, tname=dept,tname=salgrade
I am getting... (2 Replies)
Discussion started by: dreams5617
2 Replies
3. UNIX for Dummies Questions & Answers
hi there
i write one awk script file in shell programing
the code is related to dd/mm/yy to month, day year format
but i get an error
please can anybody help me out in this problem ??????
i give my code here including error
awk `
# date-month -- convert mm/dd/yy to month day,... (2 Replies)
Discussion started by: Herry
2 Replies
4. Shell Programming and Scripting
typeset -i i=1
while read -r filename; do
Splitfile=`$Targetfile_$i.txt`
awk 'substr($0,1,5) == substr($filename,1,5) && substr($0,526,2) == substr($filename,6,2) && substr($0,750,12) == substr($filename,8,12)' $SourceFilename >> $Splitfile
i=i+1
done < /tmp/list.out
I am using this logic... (1 Reply)
Discussion started by: pukars4u
1 Replies
5. Shell Programming and Scripting
Hello all,
Here is what my bash script does: sums number columns, saves the tot in new column, outputs if tot >= threshold val:
> cat getnon0file.sh
#!/bin/bash
this="getnon0file.sh"
USAGE=$this"
InFile="xyz.38"
Min="0.05"
#
awk '{sum=0; for(n=2; n<=NF; n++){sum+=$n};... (4 Replies)
Discussion started by: catalys
4 Replies
6. Shell Programming and Scripting
Hi Team,
I have .csv file in the following format
.csv file
TAB1;COL1;DATATYPE;NOTNULL;WITH DEFAULT
TAB2;COL1;DATATYPE;NOTNULL;WITH DEFAULT
....
....
....
output:
ALTER TABLE TAB1. add COL1 DATATYPE NOTNULL WITH DEFAULT;
ALTER TABLE TAB2 add COL1 DATATYPE NOTNULL WITH DEFAULT;
I... (5 Replies)
Discussion started by: rocking77
5 Replies
7. Shell Programming and Scripting
Good evening, Im newbie at unix specially with awk
From an scheduler program called Autosys i want to extract some data reading an inputfile that comprises jobs names, then formating the output to columns for example
1.
This is the inputfile:
$ more MapaRep.txt
ds_extra_nikira_usuarios... (18 Replies)
Discussion started by: alexcol
18 Replies
8. UNIX for Dummies Questions & Answers
Hi all...
In the OSX forum I am starting a new awk project to learn awk.
In this code snippet I have had to check boundaries to ensure that no NUMERICAL error occurs in the rest of the code...
printf "Enter frequency required:- ";
getline FREQ;
RATE=(BYTES*FREQ);
if ( RATE <= 4000 ) {... (4 Replies)
Discussion started by: wisecracker
4 Replies
9. Shell Programming and Scripting
Hello Team,
here is the code:
scripts]# ls /etc/init.d/ | awk 'BEGIN{ORS=" && "} /was.init/ && !/interdependentwas/ && !/NodeAgent/ && !/dmgr/{print "\$\{service_cmd\} "$0 " status"}' 2>/dev/null
${service_cmd} cmserver_was.init status && ${service_cmd} fmserver_was.init status &&... (6 Replies)
Discussion started by: chandana.hs
6 Replies
10. UNIX for Beginners Questions & Answers
Question: Write a command to print the fields in a text file in reverse order?
awk 'BEGIN {ORS=""} { for(i=NF;i>0;i--) print $i," "; print "\n"}' filename
I was thinking it should be (what is the need to set ORS="" ? )-
awk 'BEGIN { for(i=NF;i>0;i--) print $i," "; print "\n"}' filename (3 Replies)
Discussion started by: Tanu
3 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)