That works great, cabrao! Thanks a million! Just curious on how to have this output redirected back to the original file, if possible. Or will I have to have this output directed to a new file? I don't want the original file to grow out of control, as it is capturing all logins.
Maybe (if you can not redirect new output into original file) we could parse any lines in original file with a date older than 90 days? Any help is appreciated...
---------- Post updated at 10:03 AM ---------- Previous update was at 09:41 AM ----------
This is the original script to produce output file:
Is there a way to add what cabrao stated to this to minimize the size of my current forever-growing output file (/tmp/testfile1)? All help is greatly appreciated.
Trying to limit 1 login per account...
Setup:
We have 2 auth logins, one to the AIX (telnet)then into a distribution mgmt software, the users do not have a shell to log into on the AIX itself, so placing a script such as:
active=`who | awk '{printf",%s,\n",$1}' | grep ,$LOGNAME, | wc -l`
... (0 Replies)
By a shell script When I am logging into hosts one by one with ssh.
I am getting below message.
Pseudo-terminal will not be allocated because stdin is not a terminal.
stty: : Invalid argument
stty: : Invalid argument
Can you please suggest what should I do to stop this?
... (10 Replies)
Hi,
I need to run a script in two different login's in the same server, but it is running only in one login, i have used the corresponding PATH for each login, but still it says " not authorized to put msg in queue". (2 Replies)
Is the below logins are needed in the machine.....
nuucp , uucp ,smmsp , svctag , listen , webservd , ip ( We are not using printers),
Can you help in these?
Regards,
kumar (3 Replies)
Hi,
I've a shell script. If I trigger the script it takes one day to complete the execution.
I've to start the same script in 3 different logins of Unix machine simultaneously. Do you have any idea how can I make it? Please suggest.:(
Thank you.. (1 Reply)
Hi,
I’ve a shell script. If I trigger the script it takes one day to complete the execution.
I’ve to start the same script in 3 different logins of Unix machine simultaneously. Do you have any idea how can I make it? Please suggest.
Thank you..
Stop making the font size smaller than... (3 Replies)
Hello, I want to write a script that takes a username as input and outputs the user's logins sorted by duration. Also I want to exclude the "still logged in" entries.
I use the "last" command but Im having problems sorting the entries based on the duration.
Can you help me?
Thanks a lot =) (4 Replies)
Discussion started by: ddante
4 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)