I am trying to use AWK to read a file, comma delimited, and check each field to see if it has a suffix of - (dash , minus sign) if so then I want to either move the minus sign the the beginning of the field or take the numeric portion of the field and multiply it by negative 1 to get the field signed properly with the negative sign preceding the number.
How will you change the 5th column in the data file with the value in the second column in the error_correction.txt file.
You have to match an extra variable, column 3 of the error_correction file with column 6 of the data.txt file.
data.txt:
vgr,bugatti veron,,3.5,Maybe,6,.......,ax2,....... (0 Replies)
Hi,
I'm quite new to scripting, but know a few AWK statements.
I have the following line in my script:
hostname=`echo $file | awk 'BEGIN{FS=OFS="."}{$NF=""; NF--; print}'`
I use this in my script to rename files, which are similar to this:
name.mvkf.mkvfm.mkfvm.1
To the... (4 Replies)
Disclaimer: OP is 100% Awk beginner.
I use this code on ASCII files I need to report against.
awk 'BEGIN {
tokens = 0
tokens = 0
tokens = 0
}
{ for (token in tokens)
{ if ($1 == token){print $0; tokens++;}}}
END {for (token in tokens){
if( tokens ==... (1 Reply)
Hello,
I have a requirement to extract the value from multiple xml node and print out the values to new file to compare.
Would be done using either awk/perl or some unix script.
For example sample input file:
.....
.....
<factories xmi:type="resources.jdbc:DataSource"... (2 Replies)
Hi,
I know that
echo "bob alice robert alice" | awk '{print index($0,"alice")}'
5Will output the index of the first alice match, is there any way to get the index of all matches?, eg:
echo "bob alice robert alice" | awk 'unknown magic'
5:18Thanks for your time. (6 Replies)
I am passing multiple files in awk & since one of the file is empty(say file3) so the same gets skipped & logic goes for toss. Need suggestion/help in checking and putting additional checks for the same
awk -F, 'FNR==1 {++filecounter}
filecounter==1 {KRL=$2;next}
filecounter==2... (8 Replies)
I need to check if 2 values exists in the file and if they are equal print 0.
output.txt:
------------
1 2 3 4 5 6
Inputs:
a=1
b=2
My pattern matching code works but I am trying to set a counter if both the pattern matches which does not work.If the count > 0,then I want to... (3 Replies)
My program run without error. The problem I am having.
The program isn't outputting field values with the column headers to file.txt.
Each of the column headers in file.txt has no data.
MEMSIZE SECOND SASFoundation Filename
The output results in file.txt should show:
... (1 Reply)
I am trying to merge or combine all $1 values in validation.txt from multiple directories into one new file and output it here tab-delimited:/home/cmccabe/Desktop/20x/total/total.txt. Each $2 value and the header would then be a new field in total.txt. I am not sure how to go about this as cat is... (2 Replies)
I would like to compare values in column 8, and grep the ones where the different is > 1, columns 1 and 2 are the key for array.
Every 4 rows the records values in columns 1 and 2 changed. Then, the comparison in the column 8 need to be done for the 4 rows everytime columns 1 and 2 changed
... (4 Replies)
Discussion started by: jiam912
4 Replies
LEARN ABOUT BSD
wildmat
WILDMAT(3) Library Functions Manual WILDMAT(3)NAME
wildmat - perform shell-style wildcard matching
SYNOPSIS
int
wildmat(text, pattern)
char *text;
char *pattern;
DESCRIPTION
Wildmat is part of libinn (3). Wildmat compares the text against the pattern and returns non-zero if the pattern matches the text. The
pattern is interpreted according to rules similar to shell filename wildcards, and not as a full regular expression such as those handled
by the grep(1) family of programs or the regex(3) or regexp(3) set of routines.
The pattern is interpreted as follows:
x Turns off the special meaning of x and matches it directly; this is used mostly before a question mark or asterisk, and is not spe-
cial inside square brackets.
? Matches any single character.
* Matches any sequence of zero or more characters.
[x...y]
Matches any single character specified by the set x...y. A minus sign may be used to indicate a range of characters. That is,
[0-5abc] is a shorthand for [012345abc]. More than one range may appear inside a character set; [0-9a-zA-Z._] matches almost all of
the legal characters for a host name. The close bracket, ], may be used if it is the first character in the set. The minus sign,
-, may be used if it is either the first or last character in the set.
[^x...y]
This matches any character not in the set x...y, which is interpreted as described above. For example, [^]-] matches any character
other than a close bracket or minus sign.
HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> in 1986, and posted to Usenet several times since then, most notably in comp.sources.misc in
March, 1991.
Lars Mathiesen <thorinn@diku.dk> enhanced the multi-asterisk failure mode in early 1991.
Rich and Lars increased the efficiency of star patterns and reposted it to comp.sources.misc in April, 1991.
Robert Elz <kre@munnari.oz.au> added minus sign and close bracket handling in June, 1991.
This is revision 1.10, dated 1992/04/03.
SEE ALSO grep(1), regex(3), regexp(3).
WILDMAT(3)