Hi bhupeshchavan,
Here is a copy of RudiC's code with comments added.
Does this clear up your confusion with RudiC's suggestion?
Again, note that this works fine as long as you're looking for times with an end-of-range greater than or equal to 10. If at some point in the future you might want to test for a range line 2am to 9am, you would need to be sure that you're performing numeric comparisons instead of string comparisons. If this becomes an issue for you, the easy way to do that with the above code is to change:
to:
Last edited by Don Cragun; 07-15-2016 at 07:10 PM..
Reason: Fix typo: s/\$ st/# st/
These 2 Users Gave Thanks to Don Cragun For This Post:
I got it , just for my understanding(like setting up values first and then evaluating it) i tried the below code and the output is fine, please check if this is the correct way to write or i should follow the RudiC's process of writing it.
I believe that TMP keeps on adding the content to the TMP for the other lines until it finds eof. But when we use "TMP = TMP DL $0 DL=","", this is what i am still not sure about.
TMP=TMP means all the values till eof then why should we use DL and $0 after that .What does it mean to TMP.
Can we just TMP=TMP and set OFS="," at the beginning.I tried the below code but no output.
Please help.
awk works in a way that all pattern {action} pairs are being executed on the actual line until exhausted or otherwise terminated. Then the next line is read and the execution is repeated. So the sequence of operations doesn't matter as long as you don't want to influence the flow within a line. That's why the position of the time check is irrelevant. In awk, string concatenation is done by just listing the strings like str1 str2 str3, so TMP = TMP DL $0 assigns to TMP the old value of TMP plus DL plus the actual line. On the first occurrence, TMP and DL are empty strings, so the string starts with $0 only.
Hi RudiC,
I seem to get the logic now.My understanding is below:
TMP = TMP DL $0
1st line TMP = "" "" name=admin --> since $0 is this value.
DL=","
2nd line TMP = name=admin,(comma because we have specified it to a comma in the earlier statemant) transid=01
TMP value now --> name=admin,transid=01
3rd line TMP= name=admin,transid=01, $0-->time=06.58.51 HR value is also set in this line
TMP value now --> name=admin,transid=01,time=06.58.51
4th line TMP --> name=admin,transid=01,time=06.58.51,message=test
then comes eof line where HR is evaluated and print TMP is executed.
I'm trying to create a shell script that takes a awk script that I wrote and a filename as an argument. I was able to get that done but I'm having trouble figuring out how to keep the header of the output at the top but sort the rest of the rows alphabetically. This is what I have now but it is... (1 Reply)
Hi
I have a text file (Input.txt) with two column entries separated by tab as given below:
aaa str1
bbb str2
cccccc str3
dddd str4
eee str3
ssss str2
sdf str3
hhh str1
fff str2
ccc str3
.....
.....
..... (1 Reply)
I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist.
diff=$1$2.diff
id=$2 new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff |... (1 Reply)
Discussion started by: Sarita Behera
1 Replies
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Variable I have in my shell script
diff=$1$2.diff
id=$2
new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff | awk -F'~' ''$2 == "$id"' {print $0}' > $new
I could see value of $id is not passing to the awk... (0 Replies)
I am getting the following error while passing parameter to a shell script called within awk script. Any idea what's causing this issue and how to ix it ? Thanks
sh: -c: line 0: syntax error near unexpected token `newline'
sh: -c: line 0: `./billdatecalc.sh ... (10 Replies)
This is the final first release of the dynamic menu generator for pekwm (WM).
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awk "/^${1}=/{gsub(/^${1}="'/,""); print; exit}' $2
}
echo "Dynamic {"
for CF in `ls -c1 /usr/share/applications/*.desktop`
do
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hi everyone
i am trying to do this
bash> cat abc.sh
deepak()
{
echo Deepak
}
deepak
bash>./abc.sh
Deepak
so it is giving me write simply i created a func and it worked
now i modified it like this way
bash> cat abc.sh (2 Replies)
Hello,
I have this awk script that I want to execute by passing parameters through a shell script.
I'm a little confused. This awk script removes duplicates from an input file.
Ok, so I have a .sh file called rem_dups.sh
#!/usr/bin/sh... (4 Replies)
Hi guys
I have a shell script that executes sql statemets and sends the output to a file.the script takes in parameters executes sql and sends the result to an output file.
#!/bin/sh
echo " $2 $3 $4 $5 $6 $7
isql -w400 -U$2 -S$5 -P$3 << xxx
use $4
go
print"**Changes to the table... (0 Replies)