I am working on a bigger awk script in which one part is comparing the size of two files.
I want to evaluate which file is bigger and then just save the bigger one.
I got it all working except for the part where I want to figure out which file is bigger; the one awk is currently reading (->FILENAME) or the one that already lies there.
So how do you get the output of
into awk while supplying it with FILENAME?
But that ends up in <Permission Denied> (Don't ask me why, I am the owner of the script as well as the files to be read)
Another approach was system():
But fsize ends up being 0, since its just the status of the cmd, or something like that.
Next approach I found online involved something like this:
But that obviously can't work because FILENAME is an awk variable. And I don't see a way of putting FILENAME in that command.
It would be really great if someone has some idea on how to solve the problem. I have been sitting on this problem for a couple of hours now and I am starting to go nuts...
I have the following line in my script:
$sftpcmd $rmthost <<COMMANDS>> $sftplog 2>&1
For some reason this is not capturing the errors from sftp, they go to the file attached to the cron entry
ie
mm hh dd MM * /myscript > cron.out
any idea why?
digital unix 4.0d (6 Replies)
In 'C' I am trying to use the sendmail to send a message that program completed successful or failed.
The syntax is:
sprintf(cmd,"/usr/sbin/sendmail roncayenne@ssss.org to: roncayenne@ssss.org from:root subject: PROGRAM SUCCESSFUL .");
system(cmd);
But this is not working. Seems it does not... (3 Replies)
I was wondering if it was possible to tell awk to print the output of a command in the print.
.... | awk '{print $0}'
I would like it to print the date right before $0, so something like (this doesn't work though)
.... | awk '{print date $0}' (4 Replies)
Hi all, I'd like to capture the output from the 'top' command to monitor my CPU and Mem utilisation.Currently my command isecho date
`top -b -n1 | grep -e Cpu -e Mem` I get the output in 3 separate lines.Tue Feb 24 15:00:03
Cpu(s): 3.4% us, 8.5% sy .. ..
Mem: 1011480k total, 226928k used, ....... (4 Replies)
Hello,
We have an oracle database running on a Linux host (RHEL5)...I'm trying to run Oracle dbv (database verify utility) and capture its output to a file using the following syntax but the standart output does NOT get redirected to the file...
dbv blocksize=32768 ... (2 Replies)
hello,
I want to print my output into a file inside of awk, but I don't know it could wokr with using system (piping the $1-4 to another shellskript):
cat file.txt |awk '{ if ($5==2) {dataname=$1 "_" $2 "_" $3 "_" $4 "_typing.rad"
befehl=".gen_test " $7 " " $8 " " $8
system(befehl) >... (5 Replies)
Hello All,
I'm writing a Bash Script and in it I execute a piped command within a Function I wrote and I can't seem to redirect the
stderr from the 1st pipe to stdout..?
I'm setting the output to an Array "COMMAND_OUTPUT" and splitting on newlines using this --> "( $(...) )". By putting... (6 Replies)
Hi Experts,
I am trying to get system output to capture inside awk , but not working:
Please advise if this is possible :
I am trying something like this but not working, the output is coming wrong:
echo "" | awk '{d=system ("date") ; print "Current date is:" , d }'
Thanks, (5 Replies)
I am having exactly the same problem with https://www.unix.com/programming/129264-application-cleanup-during-linux-shutdown.html but the thread is old and closed. The only difference is that I use sigaction() instead of signal(), which is recommended, as far as I know.
This is my code:
... (9 Replies)
Hi,
I was searching for a way to grep 2 lines before and after a certain keyword, and I came across the following code..
awk "\$0 ~ /ORA-/ {
cmd=\"awk 'NR>=\" NR-2 \" && NR<=\" NR+2 \"' init.ora\"
system(cmd)
}" input_file
I could not understand how this works. What is system() ? what... (2 Replies)