remove blank lines in awk display
I was trying to figure out a solution for this question. I wanted to use awk for the solution.
awk
Merge 2 files based on all values of the first column of the first file
I need to merge below 2 files:
How to print incremental count of occurrences of unique values in column 1
I’m trying to come up with an solution to this problem, I need to incrementally count and then print the counts of the unique values in column 1 of a tab delimited text file. Here is an example:
Joining two files with unique identifier
I have two files with approximately 12900 and 4400 entries respectively, that I want to join. The files contain location information for all landbased weather observing stations around the globe.
The largest file is updated biweekly, and the smaller once a year or so. The original files can be found here (http://www.wmo.int/pages/prog/www/ois/volume-a/vola-home.htm and
http://weather.rap.ucar.edu/surface/stations.txt). The files I have are already manipulated by me with some mixed awk, sed, and bash script. I use the files to visualize data using the
GEMPAK package, that is freely available from Unidata. The largest file will work with GEMPAK, but only not with its full capability. For this a join is needed.
Is there any alternative to grep’s -A -B -C switches (to print few lines before and after )?
grep -A 2 -B 3 prints 2 lines after the grep string and prints 3 lines before. grep -C 3 prints 3 Lines before and 3 lines after Unfortunately, the grep I’m using does not support these options. Are there any alternative commands or script available to simulate this? Using sed/awk/perl/shell scripts? Answers: Thank you … Read more