Yes. Also "kill %1" is a syntax error.
Please post your Operating System and version and if it didn't come with "top", where you got "top" from.
There are many and various versions of "top" but most of them have command line options. A properly installed one will have "man top".
e.g. In my version the "-d 1" parameter makes "top" exit after one interation.
In practice you can usually get anything which is a displayed my "top" from standard unix commands (and in an easier to process format).
Now: ahmed101 must have a different version of "top" because in my version "-n 1" would only display one process.
I am trying to check to see if a file exists on a ftp server, well, I know that cant be done, atleast directly, So I came up with this small script
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
cd public_html/crap
dir $FILE
quit
END_SCRIPT
Where the $ variable... (2 Replies)
I'm having trouble capturing output from the following command on AIX:
grpck -n ALL > error.out
It gives me the results on the screen but my file is blank.
I have no trouble capturing output from "ls > ls.out", but doesn't seem to work with the grpck command.
Any ideas?
Thanks. (2 Replies)
Hi,
I'm new to ksh - unix platform. I'm writing a small script which will search my current directory and will search for file names which it takes input from the users.
Here is the code I'm having.
1 #!/bin/ksh
2 echo "enter a file name to be searched in the current dir : "
3 read... (1 Reply)
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)
hi,
I want to extract and save the cpu(s) information from top command output, but individual cpu statistics separately on a multi-processor machine.
In command line, top will show this statistics when we press the switch "1".
any ideas?
thanks,
meharo (3 Replies)
I have written shell script to send file as an attachemt of email and output of "top -o res" command as email body. it works fine if i execute manually from prompt but it does not send "top -o res" command output in email body when it is executed via crontab. Any suggestions. My script is below:... (5 Replies)
Hello all,
I've been woking on Solaris and Linux (Red Hat) so far but now I've inherited an HP-UX system and having minor issues with syntax...Appreciate if you could help me out here..
1) I'm trying to sort the output of the top command in HP-UX 11.11 by pressing O (capital O) after typing... (2 Replies)
Hi All,
In the output of TOP command in my unix system, i monitored that some process has utilization more than 100% even some process has 4000% utilisation.
Please help me understand how it is possible to show more than 100% utilization.
Please see the screenshot below:... (2 Replies)
need help with formatting output of command top and prstat. My requirment is to remove few columns and display remaining . But when i used awk to do that the output seems to be have gone vague, mixing the column values.
After using awk to print particular column the output seems to have lost... (1 Reply)
Hello,
I am a beginner, I have currently Solaris 11 on a vmware machine. Whenever I type a command like 'ls' the screen scrolls to the end of the screen. I am unable to see the entire list of directories and files. I have tried ls |page command, but looking out for a better option. (3 Replies)
Discussion started by: farheenprasad
3 Replies
LEARN ABOUT REDHAT
malloc_trim
MALLOC_TRIM(3) Linux Programmer's Manual MALLOC_TRIM(3)NAME
malloc_trim - release free memory from the top of the heap
SYNOPSIS
#include <malloc.h>
int malloc_trim(size_t pad);
DESCRIPTION
The malloc_trim() function attempts to release free memory at the top of the heap (by calling sbrk(2) with a suitable argument).
The pad argument specifies the amount of free space to leave untrimmed at the top of the heap. If this argument is 0, only the minimum
amount of memory is maintained at the top of the heap (i.e., one page or less). A nonzero argument can be used to maintain some trailing
space at the top of the heap in order to allow future allocations to be made without having to extend the heap with sbrk(2).
RETURN VALUE
The malloc_trim() function returns 1 if memory was actually released back to the system, or 0 if it was not possible to release any memory.
ERRORS
No errors are defined.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+--------------+---------------+---------+
|Interface | Attribute | Value |
+--------------+---------------+---------+
|malloc_trim() | Thread safety | MT-Safe |
+--------------+---------------+---------+
CONFORMING TO
This function is a GNU extension.
NOTES
This function is automatically called by free(3) in certain circumstances; see the discussion of M_TOP_PAD and M_TRIM_THRESHOLD in mal-
lopt(3).
This function cannot release free memory located at places other than the top of the heap.
This function releases only memory in the main arena.
SEE ALSO sbrk(2), malloc(3), mallopt(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 MALLOC_TRIM(3)