I will point out the most obvious ones, but i wouldn't bet on having found all of them. The script is in a state which begs a rewrite anyway.
You mentioned using AIX. The system shell is ksh, not bash. Use it!
I suppose you want to use the date command to fill a variable there. This will fill the variable "Now" with the string "date" instead and the rest of the line will produce a syntax error. You do it this way (i have corrected the date-command too):
This is not ouright wrong, just dangerous. Suppose the variable groups has no content: this would leave the following command to be executed:
similar, if groups contains a space char:
and this, subsequently, will lead to a syntax error. If you query variables and their contents do it this way (notice the quoting):
or, even more preferably, because being POSIX-compliant:
This will also not work:
Notice the "n" at the end of the first line. When you continue a line with a backslash, it needs to be the absolutely last character in this line, because in fact you are escaping the following newline character with it. If there is another character (common problem: a space) after it, the backslash will escape that instead of the newline.
Same as above, if you want a variable filled from a commands output you need to do it like this:
This won't work at all. First, "date -d" is not available in AIX (and in no other POSIX-compliant UNIX, because "-d" is not part of the POSIX standard). Since i cannot figure out what you are trying to achieve no suggestion for an alternative here, but explain what it should do and we probably find a solution.
almost correct. The problem is that variables ("$group") will not be expanded inside single quotes, only double quotes. And "grep" only works on files or streams, not on fixed strings:
Finally: capitalisation is not arbitrary in UNIX. If a keyword is "else", it is supposed to be "else", not "Else", "ELSE" or anything else either (sorry for the pun). Likewise with all the other keywords: do, done, if, while, then, ...
Hi All,
I am trying to find the physical memory usage by each process/users.
Can you please let me know how to get the memory usage?.
Thanks,
bsraj. (12 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Hi i just wanted to know what is the code to display amount of RAM and also the percentage used? I know i can possibly use the vmstat code but what part indicates the RAM? Any help would be much appreciated. Thanks (1 Reply)
Hi
one of our applications that runs on our Linux server leaks memory resulting in Ram that was used by the program not being released back to the operating system once a file has been processed. the result is over a very short period virtual all the memory has been used. an example currently
... (8 Replies)
Hi RAM of my system is 24 GB however when i checked the processes pids and counted the memory usage by pmap i found out that the total memory usage is 36 GB
It s obvious that my system might be using some of virtual memory or swap space . How can i check which memory it is using and how ..
... (9 Replies)
Hi team
I have three physical servers running on Red Hat Enterprise Linux Server release 6.2 with the following memory conditions:
# cat /proc/meminfo | grep -i mem
MemTotal: 8062888 kB
MemFree: 184540 kB
Shmem: 516 kB
and the following swap conditions:
... (6 Replies)
Hey there! I'm a new user here who registered because I couldn't get these kind of questions answered in the place I directly com from. :o
I've found a discrepancy in total RAM used and I can't figure out why it is. My only guess is there are some RAM used by some stuff impossible to identify,... (2 Replies)
Hi,
I will be creating a process myself and I want to know the average CPU and RAM used by the process over the lifetime of the process. I see that there are various tools available(pidstat) for doing , I was wondering if it possible to do it in a single command while creation.
Thanks in... (3 Replies)
Hello,
I have an ubuntu14.04 installed pc with 32GB ram.
Operating System: Ubuntu 14.04.5 LTS
Kernel: Linux 4.9.148-xxxx-std-ipv6-64
Architecture: x86_64
When I check free memory it shows:
total used free shared buffers cached
Mem: 31882 ... (2 Replies)