I am trying to use AWK to print only the first field of numerous text files, and then overwrite these files. They are of the format 1*2,3,4,5. I have tried the following code (using tcsh):
However, I get very inconsistent results each time I run this script. I have tried creating a tmp directory where I run the above command on a clean set of the files. But, sometimes it returns empty files, whereas other times it runs fine for all the files. Any ideas on what is going on here, or if there is a better way to get awk to do what I want?
On a side note, I have tried a similar method using cut:
I am new to unix and have pieced together two scripts that work independently.
The first checks all the filesystems and reports which are running low on space.
df -m | awk 'int($4) > 75 {
print $1 " has only " $3 "mb free from a total of " $2 ", this filesystem is
" $4 " full! \n"
}... (1 Reply)
Hey,
I know this is a stupid question, but it doesn't work.
I have a file with 10 lines and I want to pipe the content to awk and then print line 1 til 2 into another file and then line 3-4 ...
So my script looks like that, but doesn't work:
cat grid_ill.pts | awk '{
for (NR=1;NR<3;NR++)... (8 Replies)
I have two files which I would like to compare and then manipulate in a way.
File1:
pictures.txt 1.1 1.3
dance.txt 1.2 1.4
treehouse.txt 1.3 1.5
File2:
pictures.txt 1.5 ref2313 1.4 ref2345 1.3 ref5432 1.2 ref4244
dance.txt 1.6 ref2342 1.5 ref2352 1.4 ref0695 1.3 ref5738 1.2... (1 Reply)
Hello,
I was wondering if it is possible to do a loop on letters rather than numbers with awk (gawk).
Basically I used to do:
echo "nothing" | gawk '{for(i=1;i<11;i++)print i}'
But I would like to do something like that (which obviously does not work):
echo "nothing" | gawk '{for(i in... (6 Replies)
Hi, everyone!
I have a file, when I print its $1 out it show several strings like this:
AABBCC
AEFJKLFG
FALEF
FAIWEHF
What I want to do is that, after output of each record, search the string in all files in the same folder, print out the record and file name.
This is what I want... (4 Replies)
Hi All,
I am new to AWK programming. I have the following for loop in my awk program.
cat printhtml.awk:
BEGIN
-------- <some code here>
END{
----------<some code here>
for(N=0; N<H; N++)
{
for(M=5; M<D; M++) print "\t" D "";
}
-----
}
... (2 Replies)
Hello, I currently have managed to get an awk function working inside a for loop that allows me to combine two files based on their headings but what I have not been able to do is print the output to files with variable names.
awk '
NR==FNR {a=$0; next}
/^>/ {$0 = $0" "a;}
... (2 Replies)
Hi
My Requirement is to take the sum of each column
below is the input file.
1 2 3 4
1 2 3 4
1 2 3 4
Initial i was using below command to achieve my desired result. however this was adding the row and not column.
i am not able understand why this is happening
awk... (1 Reply)
Hi all,
I was searching the net for a solution for my problem... unfortunately nothing so far.
I want to sort on more than on column tab delimited file and keep the line if in the column I sort there is no value, but for those who have a value I want them only unique.
I have tried the... (5 Replies)
Discussion started by: ksenia
5 Replies
LEARN ABOUT DEBIAN
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).
Free Software Foundation Nov 3 1999 IGAWK(1)