10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
My file (the output of an experiment) starts off looking like this,
_____________________________________________________________
Subjects incorporated to date: 001
Data file started on machine PKSHS260-05CP
**********************************************************************
Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies
2. UNIX for Beginners Questions & Answers
I cannot seem to get what should be a simple awk one-liner to work correctly and cannot figure out why. I would like to use patterns from a specific field in one file as regex to search for matching strings in the entire line ($0) of another file.
I would like to output the lines of File2 which... (1 Reply)
Discussion started by: jvoot
1 Replies
3. Shell Programming and Scripting
Using Awk, how can I achieve the following?
I have set of record numbers, for which, I have to replace the nth field with some values, say spaces.
Eg:
Set of Records : 4,9,10,55,89,etc
I have to change the 8th field of all the above set of records to spaces (10 spaces).
Its a delimited... (1 Reply)
Discussion started by: deepakwins
1 Replies
4. Shell Programming and Scripting
I have a need to print nth field based on the parameter passed. Suppose I have 3 fields in a file, passing 1 to the function should print 1st field and so on.
I have attempted below function but this throws an error due to incorrect awk syntax.
function calcmaxlen
{
FIELDMAXLEN=0
... (5 Replies)
Discussion started by: krishmaths
5 Replies
5. UNIX for Dummies Questions & Answers
Hey,
I'm sure this is answered somewhere but my Googling has turned up nothing. I have a file with data in the following format:
<desription of event> at <time and date>The desription of the event is variable length and hence when the list is displayed it is hard to easily see the date (and... (8 Replies)
Discussion started by: RECrerar
8 Replies
6. UNIX for Dummies Questions & Answers
Hi !
input:
111|222|333|aaa|bbb|ccc
999|888|777|nnn|kkk
444|666|555|eee|ttt|ooo|ppp
With awk, I am trying to change the FS "|" to "; " only from the 4th field until the end (the number of fields vary between records).
In order to get:
111|222|333|aaa; bbb; ccc
999|888|777|nnn; kkk... (1 Reply)
Discussion started by: beca123456
1 Replies
7. Shell Programming and Scripting
I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column.
Here is the script that works for the maximum value.
awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
Discussion started by: ncwxpanther
3 Replies
8. Shell Programming and Scripting
Hi,
Is there any short method to print from a particular field till another filed using awk?
Example File:
File1
====
1|2|acv|vbc|......|100|342
2|3|afg|nhj|.......|100|346
Expected output:
File2
====
acv|vbc|.....|100
afg|nhj|.....|100 (8 Replies)
Discussion started by: machomaddy
8 Replies
9. Shell Programming and Scripting
Hi All,
I wanted to find 200th field value in delimiter file using awk.?
awk '{print $200}' inputfile
I am getting error message :-
awk: The field 200 must be in the range 0 to 199.
The source line number is 1.
The error context is
{print >>> $200 <<< }
using... (4 Replies)
Discussion started by: Jairaj
4 Replies
10. Shell Programming and Scripting
I have a large csv file that looks like this:
The 3rd field is a unix time stamp that I want to convert to human readable.
I wrote a bash script with this code:
IFS=$','
cat $1 | while read ID user DATE text flags read; do
echo -e "$ID,$user,$(date -d @$DATE),$text,$flags,$read... (3 Replies)
Discussion started by: stumpyuk
3 Replies