I have written many awk commands which go in multiple lines.
I have this confusion many times.
Some time they work if i dont terminate them with "\" but some time error.
Some time in "if" statements between if and else if i dont use ";" it gives error but sometimes it doesnt.
The below... (4 Replies)
I don't get correct output when I run this command line:
nmap -sP failedhost.com | grep -i failed | awk -F '{print $6}'
I basically want it to return 'failedhost.com' but its just showing the output of the nmap scan. (8 Replies)
Hi I am trying to understand AWK syntax
so I tried this command which gives me the home directory of root
awk 'BEGIN { FS = ":"} {if ($1 == "root") print $6 }' /etc/passwd
I would know what are the following commands doing. The first one prints all /etc/passwd, second prints nothing.
... (4 Replies)
Little bit confusing while using awk :confused::confused:
In Sed while pattern search we can use "(double quotes)
i mean
$a=hello
$cat file.txt |sed -n "/$a/p"this thing work fine But if i use it in awk it's not working How could i do the substitution of pattern by a variables and the... (1 Reply)
I have a file which is comma separated and has quotes. I can use this command and
awk -F"," '{ if ($4=="01" print $0 }' test.txt
But this doesn't fetch me the data.since it has quotes.
If the data has no quotes,the above command works fine.
In Unix you can skip quote \" but this doesn't work.... (7 Replies)
Hi I have a bash file which will split a big file to many small files.
But I got a syntax error.H="$(head -1 CCC.tped)"
awk 'print $0 > $1 ".tped"' CCC.tped
for f in $(ls *.tped); do echo "$H\n" "$(cat $f)" >$f; done
And
-bash-4.1$ bash split
awk: print $0 > $1".tped"
awk: ^ syntax error... (3 Replies)
Hi, I would like to know what is the correct syntax to perform a function in awk. Although I have seen several examples, not get it to work, this is what I'm trying:
#!/bin/bash
awk
function multi (number) {
return number * 3
}
print multi (4)Thanks (2 Replies)
Hello,
I have perl script,which take some part of data in the file.
the below command works fine in normal cmd prompt.
`awk '/CDI/ && // && !/Result for/ {print $3 $5 > "final.txt"}' datalist.txt`;
`nawk -F"" '{print $2}' finalcdi.txt`;
But not working.
Please use code tags, thanks. (5 Replies)
Hello Experts:
While writing a script to help one of the posts on here, I end up writing a wrong one. I am very much eager to know how this can be corrected.
Aim was to not print specified columns - lets say out of 100 fields, need to print all but 5th, 10th, 15th columns.
Someone already... (13 Replies)
awk -F, ' NR>1 {
BEGIN{
chr=$2
}
END{
for (k in chr) {print k}
}
} ' $gene_file
I've a really simple code. I want to store gene name and it's chromosome and in the end print them.
I'm skipping line one as it contains headers.
But I don't know why I get error as: (2 Replies)
Discussion started by: genome
2 Replies
LEARN ABOUT XFREE86
sdiff
SDIFF(1) User Commands SDIFF(1)NAME
sdiff - side-by-side merge of file differences
SYNOPSIS
sdiff [OPTION]... FILE1 FILE2
DESCRIPTION
Side-by-side merge of differences between FILE1 and FILE2.
Mandatory arguments to long options are mandatory for short options too.
-o, --output=FILE
operate interactively, sending output to FILE
-i, --ignore-case
consider upper- and lower-case to be the same
-E, --ignore-tab-expansion
ignore changes due to tab expansion
-Z, --ignore-trailing-space
ignore white space at line end
-b, --ignore-space-change
ignore changes in the amount of white space
-W, --ignore-all-space
ignore all white space
-B, --ignore-blank-lines
ignore changes whose lines are all blank
-I, --ignore-matching-lines=RE
ignore changes all whose lines match RE
--strip-trailing-cr
strip trailing carriage return on input
-a, --text
treat all files as text
-w, --width=NUM
output at most NUM (default 130) print columns
-l, --left-column
output only the left column of common lines
-s, --suppress-common-lines
do not output common lines
-t, --expand-tabs
expand tabs to spaces in output
--tabsize=NUM
tab stops at every NUM (default 8) print columns
-d, --minimal
try hard to find a smaller set of changes
-H, --speed-large-files
assume large files, many scattered small changes
--diff-program=PROGRAM
use PROGRAM to compare files
--help display this help and exit
-v, --version
output version information and exit
If a FILE is '-', read standard input. Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
AUTHOR
Written by Thomas Lord.
REPORTING BUGS
Report bugs to: bug-diffutils@gnu.org
GNU diffutils home page: <http://www.gnu.org/software/diffutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO cmp(1), diff(1), diff3(1)
The full documentation for sdiff is maintained as a Texinfo manual. If the info and sdiff programs are properly installed at your site,
the command
info sdiff
should give you access to the complete manual.
diffutils 3.6 May 2017 SDIFF(1)
04-20-2010
