Could this be simplified in structure rather? I generally don't like cats, but this one might make sense:-
Does that make more sense? i struggle with awk & sed so this may be clearer to you, maybe not. It's just an alternate that might make it easier to maintain in future, however it will likely run slower than a single well written awk
By way of explanation
The cat -n prefixes each line with a sequence number
The while read loop reads each field from each line (including the sequence
The printf displays the fields you want, tab separated by \t and throwing a new-line at the end \n
I am trying to collect the sar output for around 90minutes.
When i do
sar 1 5000 >> /tmp/sar.out
It's not updating the sar.out file. When we decrease the 5000 to smaller number like 10, i can see the file sar.out updated after the 10seconds.If i kill my sar while it is running it's not... (1 Reply)
Hi All,
i tried sar command the output appears to be for several days
I would like to just see today's SAR output: Please advice me.
$sar
Linux 2.6.9-67.ELsmp (lrtp50) 02/28/09
00:00:01 CPU %user %nice %system %iowait %idle
00:05:02 all 3.10... (4 Replies)
Hi,
We have 2 scripts below for reporting sar output which are pretty same.
In first script i want to add to the program whatever is given in the comments.
In second script I want to use while true to run this program every hour and everything that is in comment.
Finally I want to club... (0 Replies)
Hi,
Anyone knows how to extract sar command output to excel or Is there any free grapical tools to extract this sar log file. thanks, regards (2 Replies)
I was reviewing yesterday's sar file and came across this strange output! What in the world? Any reason why there's output like that?
SunOS unixbox 5.10 Generic_144488-07 sun4v sparc SUNW,T5240 Solaris
00:00:58 device %busy avque r+w/s blks/s avwait avserv
11:20:01 ... (4 Replies)
We're experiencing some intermittent freezes on one of our systems and I'm trying to figure out what is happening.
We're running Solaris 10 zones mounting shares from netapp through nfs.
On the zone that freezes we have sar running and are getting this output:
SunOS prodserver 5.10... (3 Replies)
I am facing situation where sar -u command is showing 0 for all cps, so does it mean all the cpus are fully utilized, os is oracle Linux 6.8
01:34:13 PM all 0 0 0 0 0.00 0 (2 Replies)
Discussion started by: manoj.solaris
2 Replies
LEARN ABOUT MOJAVE
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u Disable output buffering.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
EXIT STATUS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
The cat utility does not recognize multibyte characters when the -t or -v option is in effect.
BSD March 21, 2004 BSD