Hello All,
I am trying to write a script that would capture the output of time command on a Sun machine.
I have tried these commands
$ time ls > out
$ time ls 2> out
I just get the ls output in the out file for the first one.
Thanks for any help
Chuck (2 Replies)
hi,
i wat to get the output of a grep command in a file. but when i am trying out the same grep command in the unix prompt its working fine.. i am getting the output properly.. but when i am writing the same command inside my shell script , its just creating a new output file with no contents... (11 Replies)
what does the '+' sign stand for on the output of ls command on cygwin?
-rw-------+ 1 milhan None 146783 Jun 19 12:10 schedule.pdf
-rw-------+ 1 milhan None 320 Aug 15 17:14 current.txt
-rw------- 1 milhan None 24576 Dec 28 2008 fdfd.txt (2 Replies)
Hi Everyone,
Can anyone please tell me, how can I redirect the grep command output to same file. I am trying with below command but my original file contains no data after executing the command.
$grep pattern file1 > file1
Kind Regards,
Eswar (5 Replies)
When i use the command to check the preview of the filesets to be installed using CLI
# When using this commad 'm able to see all Preview view of the filesets to be installed
installp -apgX -d "." all
# When I redirected the same output to a file 'm able to see only half the details... (1 Reply)
Hello,
In my make file (make 3.81), I use a combination of shell commands to automatically create the name of my build directory.
OS := $(shell uname -s)
ARCH := $(shell uname -m)
KERN := $(shell uname -r | cut -d. -f 1,2)
BDIR := $(OS)_$(KERN).$(ARCH)When I boot into different OSs, I... (7 Replies)
Hi
can anyone tell me how to redirect the ouput of a cvs command to a file as well as the console?
i tried using
cvs add <filename> | tee logFile
cvs add <filename> 2>logFile 2>&1
All i could get is only on console or on file.
Please help
Thanks (2 Replies)
Hi, although I am not expert in bash, so please forgive me if this is silly, I think that this is strange:
I have this command:
find . -type f -print0 |xargs -0 grep -i -e 'some rexp'
and it works fine. But when I create a bash script (on cygwin) to run this command, there is no output !!!... (3 Replies)
(/home/user1)-> more script.sh
#!/bin/ksh
( echo open devicename
sleep 3;
echo user;
sleep 2;
echo password;
sleep 2;
echo "/info/dump"; ---------> This needs to redirect to a file .Can be number of pages
sleep 2;
echo "exit" ) | telnet
Please use code tags next time for... (2 Replies)
Discussion started by: necro98
2 Replies
LEARN ABOUT CENTOS
trace_printk
TRACE_PRINTK(9) Driver Basics TRACE_PRINTK(9)NAME
trace_printk - printf formatting in the ftrace buffer
SYNOPSIS
trace_printk(fmt, ...);
ARGUMENTS
fmt
the printf format for printing
...
variable arguments
NOTE
__trace_printk is an internal function for trace_printk and the ip is passed in via the trace_printk macro.
This function allows a kernel developer to debug fast path sections that printk is not appropriate for. By scattering in various printk
like tracing in the code, a developer can quickly see where problems are occurring.
This is intended as a debugging tool for the developer only. Please refrain from leaving trace_printks scattered around in your code.
(Extra memory is used for special buffers that are allocated when trace_printk is used)
A little optization trick is done here. If there's only one argument, there's no need to scan the string for printf formats. The trace_puts
will suffice. But how can we take advantage of using trace_puts when trace_printk has only one argument? By stringifying the args and
checking the size we can tell whether or not there are args. __stringify((__VA_ARGS__)) will turn into "() " with a size of 3 when there
are no args, anything else will be bigger. All we need to do is define a string to this, and then take its size and compare to 3. If it's
bigger, use do_trace_printk otherwise, optimize it to trace_puts. Then just let gcc optimize the rest.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 TRACE_PRINTK(9)