Thank you all for you help, i`m going to explain what i have to do, i need to create a script for a client that list the people than conect to the computer but not this month , a month behind (example where are in jul i need to see the last of jun), I dont understand kunal, is killing me this script
a=`date +%m`
mesn=`expr $a - 1`
case "$mesn" in
1)
b="Jan"
;;
2)
b="Feb"
;;
3)
b="Mar"
;;
4)
b="Abr"
;;
5)
b="May"
;;
6)
b="Jun"
yes system shock , but mi problem is i need to pass that month to the nawk sentences to make the comparation, and the nawk use the last -a to make the comparation. Thank for your time
..yeah, but if you start a command string with the wrong syntax, you are never going to get the output you are expecting. In this case, grep must grep the string from something, being a file or an output.
I take it is a log file that's logging the user activity, and this log file has a date stamp that includes the month. If that is the case, then the command should be:
... then you can pipe the output of that command to last, then awk.
tNow, I think you are making things a little more complicated than they need to be.
Why don't you post a sample output from the log file and show us what you are trying to compare?
BTW, use code tags. They make your output and code more readable.
I don't know if you guys get this problem sometimes at Terminal but I had been having this problem since yesterday :( Maybe I overdid the Terminal. Even the codes that used to work doesn't work anymore.
Here is what 's happening:
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