Hello,
can someone please explain me what the following commands do.. i know the output but i would like to understand the break down of what they do step by step.
1. This will give the current time minus 1 min in the form of hh:mm
This will print the lines begining (line that matches the above hh:mm time) till the end of the line for the file req.txt
This will count the no of lines returned
so
will o/p no of lines.
2. This will print lines between the lines that matches 19:00 and till 22:00
From the above lines, it will filter only the lines that contain the string mytesturl
From the returned lines, this will print field no 1,6 and 10 only which are comma seperated
This will print only field 2 from the above lines
The sed command and sort and uniq:
sed will look for string like :hh.mmm and replace with nothing and its o/p is sorted and then count on the uniq values
Help understand awk command
This command converts the column values to rows.
Command:
awk -s1=" " '{S=S?S OFS s1 $0 s1:s1 $0 s1} END{print S}' OFS=, Input_file
Example:
1
2
3
is converted to:
1, 2, 3
Can anyone please help me understand this command?
Please use code tags when... (1 Reply)
Hi Gurus,
I am new for Unix scripting. below command in one existing script. I am not able to fully understand. please help
in below command, I am not able to understand what's {P=1} do
thanks in advance
awk 'NF==1{$3=$1;$1=L}P&&NF>=3{print $1,$3;L=$1}/^___/{P=1}' FILE (3 Replies)
cat teledir.txt
jai sharma 25853670
chanchal singhvi 9831545629
anil aggarwal 9830263298
shyam saksena 23217847
lalit chowdury 26688726
If i use the below command , it is giving me the output with "," in between two name. how ? and also i would like to know the reason for the space used in... (1 Reply)
I am learning SED and just following the shell scripting book, i have trouble understanding the grep and sed statement,
Question : 1
__________
/opt/oracle/work/antony>cat teledir.txt
jai sharma 25853670
chanchal singhvi 9831545629
anil aggarwal 9830263298
shyam saksena 23217847
lalit... (7 Replies)
Hi
i am in learning phase of unix.
i was going through exec in a unix book. below is the command
exec n>file
exec n>>file
however when i used the exec command like below , where ex is the file name
exec 2>>exand then do ls -lrt then again when i do the ls -lrt to see the size of the file... (3 Replies)
I have taken putty session of a server from two separate machines namely HOST1(3 sessions) and HOST2(1 Session) .
However w command says there are 5 users
Confused over the output any clue will be appreciated.
# w
09:29:36 up 34 days, 15:48, 5 users, load average: 0.62, 4.33, 8.16
USER ... (3 Replies)
Hey forum,
I have a problem with a script what used to work, but suddenly is not working anymore. I have been trying different things for an hour now and I give up :D .
#!/bin/sh
asukoht=`pwd`
template=$1
for values in... (4 Replies)
Can someone help me understand why
sed '/host/ s/$/QQQ/g' junk
is taking the file 'junk' which is this:
host Example_1
filename-"gfnwd.cfg";
hardware-ethernet-00:13:11:fd:7a:88;
fixed-address-10.10.6.19;
}
host Example_2
filename-"gfnwd_280.cfg";... (2 Replies)
Hi,
I am trying to find the max memory utilization of a binary file using chatr command.
i gave chatr <file name>. But no where i could see the max memory usage of the file. How do you i check the memory usage of this binary file.
Upto my knowledge it should be 1.75GB in HP-UX. But the does... (1 Reply)