Hi, to determine if a value is not present in a column, you have to read the entire file first. There are two choices, read the file and put all relevant information in memory and then print the results, or read the same file twice.
With the latter approach, something like this should work:
--
Note: NR==FNR is a condition that only applies when the file is being read for the first time. The next statement ensures the rest of the code is used when reading the file for the second time.
Last edited by Scrutinizer; 07-24-2019 at 08:35 PM..
These 2 Users Gave Thanks to Scrutinizer For This Post:
Hi all
I am trying to scan a file that has 3 columns:
red blue 123351
red blue 848655
red blue 126354
red blue 023158
black white 654896
red blue 650884
I want an output that sums the rows that have matching columns 1 and 2 :wall:
red blue has 5 entries
black white has 1 entry
... (4 Replies)
Hello. I have two files. FILE1 was extracted from FILE2 and modified thanks to help from this post. Now I need to replace the extracted, modified lines into the original file (FILE2) to produce the FILE3.
FILE1
1466 55.27433 14.72050 -2.52E+03 3.00E-01 1.05E+04 2.57E+04
1467 55.27433... (1 Reply)
I have a text file that has three columns. But at the end of the text file, there are trailing lines that have missing second and third columns:
4 0.04972604 KLHL28
4 0.0497332 CSTB
4 0.04979822 AIF1
4 0.04983331 DECR2
4 0.04990344 KATNB1
4
4
4
4
How can I remove the trailing... (3 Replies)
Hi,
I want to compare the columns of two files excluding column 2 from both the files. I tried this awk command.
awk -F":" 'NR==FNR{++a;next} !(a)' file1.txt file2.txt
.
Example: File1.txt
123:09-15-2011:abc:123456
123:09-15-2011:abc:234567
123:09-15-2011:abc:345678
... (5 Replies)
I would like to compare the values of 2nd column of consecutive lines of same file in such a way so that if the difference between first value and second value is more than 100 it should print complete line else ignore line.
Input File
==========
PDB 2500
RTDB 123
RTDB-EAGLE 122
VSCCP 2565... (4 Replies)
- I have two files (File 1 and File 2) and the contents of the files are mentioned below.
- I am trying to compare the values of Column1 of File1 with Column1 of File2. If a match is found, print the corresponding value from Column2 of File1 in Column5 of File2.
- I tried to modify and use... (10 Replies)
Hi,
I want to compare two columns from file1 with another two column of file2 and print matched and unmatched column like this
File1
1 rs1 abc
3 rs4 xyz
1 rs3 stu
File2
1 kkk rs1 AA 10
1 aaa rs2 DD 20
1 ccc ... (2 Replies)
Dear Unix experts,
I have got a file where I would like to compare the values of second column if first column is same in such a way that the difference between the values is >50. If not, I would like to discard both values.
For example, my input file looks like -
comp275_c0_seq2 73... (7 Replies)
Judi # cat File1
judi /export/home 76
judi /usr 83
judi #
judi # cat File2
judi /export/home 79
judi /usr 82
judi #
if COLUMN3 of File2 is greater that COLUMN3 of File1, then print File2's lines
juid /export/home 79
Code tags please (2 Replies)
Discussion started by: judi
2 Replies
LEARN ABOUT DEBIAN
x2sys_merge
X2SYS_MERGE(1gmt) Generic Mapping Tools X2SYS_MERGE(1gmt)NAME
x2sys_merge - Merge an updated COEs tables
SYNOPSIS
x2sys_merge -Amain_COElist.d -Mnew_COElist.d
DESCRIPTION
x2sys_merge will read two crossovers data base and output the contents of the main one updated with the COEs in the second one. The second
file should only contain updated COEs relatively to the first one. That is, it MUST NOT contain any new two tracks intersections (This
point is NOT checked in the code). This program is useful when, for any good reason like file editing NAV correction or whatever, one had
to recompute only the COEs between the edited files and the rest of the database.
-A Specify the file main_COElist.d with the main crossover error data base.
-M Specify the file new_COElist.d with the newly computed crossover error data base.
OPTIONS
No space between the option flag and the associated arguments.
EXAMPLES
To update the main COE_data.txt with the new COEs estimations saved in the smaller COE_fresh.txt, try
x2sys_merge -ACOE_data.txt -MCOE_fresh.txt > COE_updated.txt
SEE ALSO x2sys_binlist(1), x2sys_cross(1), x2sys_datalist(1), x2sys_get(1), x2sys_init(1), x2sys_list(1), x2sys_put(1), x2sys_report(1)GMT 4.5.7 15 Jul 2011 X2SYS_MERGE(1gmt)