The special OFS variable controls what awk's output separator is.
You can even use this to transform lines with one separator into a different separator, but beware that awk won't actually alter the line until you write to the line or tokens in some way. A no-op like $1=$1 would do.
hello,
i have a file "TEST" and want to change the digit(s) after "=" . but i also want to print the old entry with a comment (for information).
i want to use "sed", is it possible ?
file:
TEST = 10 # comment default value: 0
sed , with "p" , i can print the old entry, but i want to... (2 Replies)
Hi,
I have a problem where I need to append few spaces(say 10 spaces) for each line in a file whose length is say(100 chars) and others leave as it is.
I tried to find the length of each line and then if the length is say 100 chars then tried to write those lines into another file and use a sed... (17 Replies)
Hi All
I've a file which is similar to the one given below
column1 coulmn2 column3 column4
A B C D
X Y
F G H
I would like to get it in this format
A|B|C|D
||X|Y
F||G|H
Is... (4 Replies)
awk '/abc/{print $2}'
This will show the line contains abc and only show the "two filed"
But I want to the line contains "abc" will only show $2, other line still show.
and I want to know awk's way about not only show the line besides changed line
Thanks (2 Replies)
Hi,
I need help to split any lines that contain ; or ,
input.txtAc020 Not a good chemical process
AC030 many has failed, 3 still maintained
AC040 Putative; epithelial cells
AC050 Predicted binding activity
AC060 rodC Putative; upregulated in 48;h biofilm vs planktonic
The output... (8 Replies)
I seem to have hit a curious problem where sed and awk based regex do not seem to work. Perhaps I am missing a switch to look within the same line and not across lines.
I have input as follows:
... (4 Replies)
Hi,
Need to sort file based on the number of delimeters in the lines.
cat testfile
/home/oracle/testdb
/home
/home/oracle/testdb/newdb
/home/oracle
Here delimeter is "/"
expected Output:
/home/oracle/testdb/newdb
/home/oracle/testdb
/home/oracle
/home (3 Replies)
when given a file name, im looking for the most efficient way to turn each letter of the file name into spaces.
for instance, the way im thinking of going about this is this:
MYFILE=check_disks.sh
CHANUM=$(echo ${MYFILE} | awk '{ print length }')
printf '%s\n' $CHANUM
as you can see... (4 Replies)
Discussion started by: SkySmart
4 Replies
LEARN ABOUT LINUX
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)