I assume that you're really looking for a non-zero value in an odd column immediately followed by a non-zero value in an even column. If that is correct, I think something like:
will do what you want.
hi...
i want to extract single row from a file at a time and i don't want to specify which row to be extracted in the command.
i mean i want to use a loop, so that i will fetch all the rows one after the another.
i used sed -n '$count p' filename
but this is not working.
please give me the... (2 Replies)
Hello Everyone,
i have quick question.
I have file names like: bin_map300.asc and I would like to extract grid300.
My approach so far:
name=bin_map300.asc
echo ${name%%.*}
echo ${name##*_}
I am stuck combining the two.
Any help would be appreciated. (3 Replies)
File A
aa <space> --D--A--D---DDY---M--UM-M--MY
Another file
D3
M9
So output shud be
Here in FileA D which is 3 after removing dash
after we have counted dash D is position at 9
and for M is 23
final output will be
D9
M23 (2 Replies)
is there another way of doing the below:
echo "7 3 8 2 2 1 3 83.4 8.2 4 8 73 90.5" | bc
shell is bash. os is linux and sunos.
bc seems to have an issue with long range of numbers (12 Replies)
I have a spreadsheet of extremely long rows of numbers. I want to print only the last column. Tried using printf but there seems to be too many rows.
example:
3 100 34 7 23 0 8 ..... X
400 203 778 1 ..........Y
58 3 9 0 100 ..........Z
I only want to print X, Y and... (1 Reply)
Hi I am part of a academic organization and I want to send a fax to the students however there must be a quicker way to get the fax numbers extracted from the online forms they sent me.
The file looks like this (numbers are fake in order to protect identity):
Biochemistry Major
Michael... (3 Replies)
I am extracting a number of key/value pairs in awk using following:
awk '
/xyz_session_id/ {
n=index($0,"xyz_session_id");
id=substr($0,n+15,25);
a=$4;
}
END{
for (ix in a) { print a }
}'
I don't like this Index + substr with manually calculated... (5 Replies)
the following is used to add numbers:
echo 7 47 47 44 4 3 3 3 3 3 | awk '{ for(i=1; i<=NF;i++) j+=$i; print j; j=0 }'
how do i multiply OR subtract a row of numbers using the above tactic? (8 Replies)
In a huge log file (43MB, 43k lines) I am trying to extract data between two tag pairs on same line and export it to a file so I can pull it into Excel for a report.
One Pair is <Text>data I need</Text>
Other pair follows on same line and is <TimeStamp>more data I need</TimeStamp>
I would need... (2 Replies)
Need help in coding:
File with several rows incl. numbers like
1 2 3 4
5 6 7 8
...
How can i build the sum of each row seperately?
10
26
...
Thx for help.
Please use CODE tags as required by forum rules! (13 Replies)
Discussion started by: smitty11
13 Replies
LEARN ABOUT MOJAVE
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD