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 ksh code that needs to be written in AWK. can someone please help me here? :(
if }" | grep -c "$2") -gt 0 ] ; then
print - "found $2 in array ignore"
else
print - "did not find $2 in array ignore"
fi
ignore=4ty56r
ignore=er45ty
.
.
.
ignore=frhtg2 (27 Replies)
Hi I have a bash file which will split a big file to many small files.
But I got a syntax error.H="$(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 FREEBSD
delay.4th
DELAY.4TH(8) BSD System Manager's Manual DELAY.4TH(8)NAME
delay.4th -- FreeBSD debugging boot module
DESCRIPTION
The file that goes by the name of delay.4th is a set of commands designed to add debugging capabilities to loader(8). The commands of
delay.4th by themselves are not enough for most uses. Please refer to the examples below for the most common situations, and to loader(8)
for additional commands.
Before using any of the commands provided in delay.4th, it must be included through the command:
include delay.4th
This line is present in /boot/beastie.4th file, so it is not needed (and should not be re-issued) in a normal setup.
The commands provided by it are:
delay_execute Executes the [string] procedure stored in the delay_command environment variable after loader_delay seconds.
If the optional delay_showdots environment variable is set, a continuous series of dots is printed.
During the duration, the user can either press Ctrl-C (or Esc) to abort or ENTER to proceed immediately.
The environment variables that effect its behavior are:
delay_command
The command to be executed by delay_execute.
loader_delay
The duration (in seconds) to delay before executing delay_command.
delay_showdots
If set, will cause delay_execute to print a continuous series of dots during the delay duration.
FILES
/boot/loader The loader(8).
/boot/delay.4th delay.4th itself.
/boot/loader.rc loader(8) bootstrapping script.
EXAMPLES
Introducing a 5-second delay before including another file from /boot/loader.rc:
include /boot/delay.4th
set delay_command="include /boot/other.4th"
set delay_showdots
set loader_delay=5
delay_execute
SEE ALSO loader.conf(5), beastie.4th(8), loader(8), loader.4th(8)HISTORY
The delay.4th set of commands first appeared in FreeBSD 9.0.
AUTHORS
The delay.4th set of commands was written by Devin Teske <dteske@FreeBSD.org>.
BSD May 18, 2011 BSD