Tag: awk

Linux awk command with pipe

Can anyone tell me what the below linux command does: I know tail -5 test.log | grep ‘Start Calculate’ looks for the 5 last lines containing ‘Start Calculate’ in test.log. But then I don’t get what awk does? Answer tail -5 test.log take the 5 last lines of the test.log file then …

Use awk to create file

awk bash linux shell

I have a file that contain : Mr Q 01629699998 Ms Nhung 011287633 … I would like to use this awk ‘{print “BEGIN:VCARD”;print “Name:”$0;print “TELEPHONE:”$0;print “END:VCARD”}’ file to create this result BEGIN:VCARD Name: Mr Q TELEPHONE:016296999…

How to format decimal space using awk in linux

awk bash linux

original file : now i need to control third columns with 6 decimal space after i tried awk {‘print $1,$2; printf “%.6ft”,$3’} but the output is not what I want result : that’s weird , how can I do that will just modify third columns Answer Your print() is adding a newline charact…

awk in non-interactive is leaving some data missing

awk bash fflush linux shell

I’m running an awk command in a shell script, and it’s breaking the datafile. All of the data doesn’t load, and there’s a newline character at the end of each line. If I run this as a command, it works perfectly. I’ve just found that i can use fflush() and it seems to have solved…

Get information in the Log file

awk grep linux

I have a log file and below is sample log in that file. I changed only here column 3rd and 4th as SourceNo,Destination for reference. my requirement – I need to get separately, Source wise total count that sent to Destination begin with 44 code. i tried with grep and awk but it didn’t work. apprec…

How to gather IP and User Agent info and uniq them base IP address from nginx access log with AWK?

awk bash linux nginx shell

i have a sample log file I want to collect all the ip and user agent info to a file, and uniq the same IP address, how can i do with awk ? output like: Answer With sed, sort and uniq :

How to group by two fields using bash scripting?

awk bash linux

Here is one example of one line of log: I know how to group by one filed, so this is the solution: and this would be results: My question is that how can I group by two fields instead of one, first should be $11 and second is $10? So results should change to: Answer how can I group by

Getting unexpected newline error while doing awk

awk bash linux shell

I am running the following script in linux command line: I am getting the following error: I believe the quotes and spaces are consistent, but why am i still getting this error? Output of ps -ef | grep “java -Droute=full” Answer The actual problem you’re trying to solve is something like &#8…

replace text between two tabs – sed

awk linux sed ubuntu unix

I have the following input files: and I am trying to find the second string between the two tabs (e.g. text2, abc2) and replace it with another word. I have tried with but it only deletes the tab and does not replace the word. I appreciate any help! Answer I would suggest using awk here: Set the input and out…

Syntax error at or near {

awk if-statement linux

I have an assigment where I have to count the number of words in each .c .cc and .h file.The problem is it keeps showing the syntax error at line 8 and 10 at or near { .This is not a finished script!It may have some other problems but I only needed help with the syntax error! Answer Inside an