AIX (Advanced Interactive eXecutive, pronounced "a i ex") is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms.

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How to create a volume group, logical volume and a file system on AIX?

I'm getting some difficulties to create a file system on an AIX server. In Linux the task is easy and takes four commands, but I cannot figure out how to do it in AIX. On Linux I'd do the following: ...
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Add a path in $PATH globally for every user

Do we have anyway to add a path globally so that each user gets it in $PATH. I want to add path of ANT so that each user doesn't need to add it in his $PATH variable.
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164 views

Why PowerVM LPAR CPU utilization is negative

For a specific case I compute an PowerVM LPAR CPU utilization to be a large number less than zero. I am fetching the lpar sample event using: lslparutil -r lpar -m P750 --filter "lpar_names=i5lp5" ...
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Find on AIX with output to file

find /apps/dynalife/clients/. ! -path "train" -type f -mtime +90 ! \( -name "*.p" -o -name "*.i" -o -name "*.w" -o -name "*.cls" -o -name "*.inf" -o -name "*.bat" \) -exec {} \; > ...
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949 views

How to get start time for a defunct process on AIX?

When I run the following commands on AIX: 22:root@SERVER:/root # ps -ef | head -1 UID PID PPID C STIME TTY TIME CMD 22:root@SERVER:/root # ps -ef | grep defunct | head -1 ...
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AIX 'rm' command has no '-v' parameter for verbose output

AIX 'rm' command has no '-v' parameter for verbose output as stated by IBM's documentation. Normally I would run (in linux) rm -rfv <myfile> to (r)ecursively and (f)orcably delete files and ...
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588 views

Occasional error from bash on AIX: Interrupted system call

I am experiencing problems with process substitution in bash on AIX It happens very rarely, apparently only when the server is loaded. An example error message is: line 9: /tmp//sh-np-7841523: ...
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sar -P ALL command AIX 6.1

What is the meaning of - in the cpu column below? Is it average of all CPU cores? bash-3.00$ sar -P ALL 2 2 AIX tinapp1 1 6 00F6F78B4C00 11/27/13 System configuration: lcpu=4 mode=Capped 19:02:54 ...
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Facility on AIX to ZIP a list of files

I'm working with an external company who is using AIX (version unknown) as their platform. They are required to FTP me a ZIP file containing multiple files. Does the UNIX utility zip exist on a ...
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Merge three file in to a single master file by excluding the header in 2nd and 3rd files

I have three file with n number of lines as given below sample1.txt ------------------------------ Date Time Name ------------------------------ 2013/10/12 12:09:09 Krish ...
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IBM AIX: How do I set up SSH X forwarding on an unprivileged user with no home?

Long story short: I have an AIX server where my user is unprivileged and has no home directory, and it is not easy to fix this because OS-level management of this server is outside of my jurisdiction. ...
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Next day of the user entered date - date +1 day

I am new to scripting I needed a script in the AIX environment to get the next days date based on the date entered by the user of the script. After hard time browsing for this I got a piece of code ...
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702 views

0403-053 Expression is not complete; more tokens expected

I have this piece of code given below as a part of my main script if [ -e /tmp/rsm/Logs/filename_$$.txt ]; then { total=0 for files in $(<filename_$$.txt); do #cd /tmp/rsm/Logs docs=`grep -i ...
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4k views

Extract single file from tar to other folder

I've searched for multiple forums for this questions and have seen different answers but so far, nothing have worked yet even from the ones I've seen here. I want to extract a single file from a tar ...
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Need to get the difference between two time in seconds

The following two variables contain the start time and the end time , need to get the difference between these two time in seconds start_time=06:07:25 end_time=07:02:08 Desired Output diff_time= ...
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457 views

Vi editor behaving randomly while editing

When I open a PuTTY session in full screen I can't scroll down and up properly with the down arrow key. It seem to move down the screen and gets stuck somewhere in the middle. When I open PuTTY in ...
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3answers
8k views

Multiple pattern match and print in single line

I need to match two patterns in a log file and need to get the next line of the one of the pattern (out of two patterns) that is matched, finally need to print these three values in a single line. ...
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Extract data from two files

I have two files as given below Output1.csv 201319107648361,12:27:04,12:27:14,0:0:10 secs 201319109089878,12:27:04,12:27:15,0:0:11 secs 201319108968961,12:27:15,12:27:54,0:0:9 secs ...
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Convert Unix timestamp into human-readable format on AIX

I need to convert unix timestamp (number of seconds since 1970, e.g. 1381260225 is Tue Oct 8 19:23:45 GMT 2013) into a standard human-readable format. I could get some answers by googling but those ...
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How to load .profile without relogin in AIX?

How can I load my .profile file without a relogin in AIX Server?
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Why alias does not work in AIX (korn shell, .profile)?

I have these files in my home directory: drwxr-xr-x 3 meuser staff 256 Oct 12 13:11 . drwxr-xr-x 102 bin bin 4096 Sep 30 12:28 .. -rw------- 1 meuser staff ...
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CPU usage monitoring in AIX servers

In order to monitor the CPU usage in an AIX server I'm using the following script that is executed every 10 mins. lparstat 2 10 > cpu usage=$(tail -10 cpu | awk 'BEGIN {sum=0;} {sum+=$4} END{print ...
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Which programme calls csh.cshrc?

I understand that when a user logs into unix remotely, first a getty process is started. If authentication is successful, then etc/environement is called. However, I do not understand when is ...
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Subtracting dates in unix

Is there a way in unix to subtract a month or at least 30 days from a specific date? The date is to be inputted by the user. Example: 2012-11-19 - 1 month = 2013-10-19 This one doesn't work: date ...
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How different is I/O handling of hard disk in AIX and Redhat Linux?

I am running a hadoop I/O workload in redhat linux and have ran that in IBM AIX as well with same underlying hardware, disk and disk configuration. With the default settings on the os redhat linux is ...
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How to change file owner in AIX?

How can I change a owner of a file in AIX? I created a file using my personal account and then I tried to change user for this file: chown rootuser myfile.csv chown: myfile.csv: Operation not ...
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What is the cheapest way to run AIX 6-7 at home? [duplicate]

What is the cheapest way to run AIX 6-7 at home? Using an emulator or is there any low-cost hardware that can run AIX6 or AIX7? Purpose: practicing VIO/LPAR/HMC/etc..
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AIX 6.1 — Without root can I get the last failed login for a user i have access to?

I know the information is in the security files but I don't have access and it's more work then I want to do to go to our Unix admins to get the information (everytime the account gets locked which is ...
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244 views

No virtual memory (-v) item in output of ulimit -a

When I run command ulimit -a, I see no virtual memory item in the list of output of the command. It is unlimited for some user IDs though. Does that mean I am assigned no virtual memory?
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567 views

How can I set an e-mail's headers using /usr/bin/mail?

I have a bunch of scripts on an IBM AIX server's crontab that call the mail command to send myself an e-mail, kinda like this: $ mail -r myon@hakugyokuro.gk -s "Results for `hostname`" ...
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PowerVM lpar specific cpu/mem info

I want to get the CPU and memory allocation information from lpars of PowerVM through HMC. I have used lshwres -r proc -m <ms> --level lpar lssyscfg -r proc -m <ms> The fields of ...
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How to set password for users in AIX using single line command?

Is there any way in which I can set the password for a newly created user account in AIX in a one line command? I don't want to give any prompt to the user. If there is a command, it should set the ...
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340 views

Perl alternative for screen/tmux for the UNIX world?

What happens when a screen/tmux-like solution is needed (to leave a process running for a long time, but not with nohup because interaction could be needed) - but screen/tmux is not available on the ...
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Is there any way to check df -k hanging for nfs mount issues?

I am trying to write a script for such failure scenarios. In a scenario where maybe, if remote connection is lost, df waits for the remote server to respond (looks like df is hanging). I know I could ...
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1answer
217 views

Is there a way to see which process invoked a shell script?

Is there a possibility so see from some unix log file what process have invoked a bash/ksh shell script or is this shell script invoked manually from command line? So is there some log file which ...
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why cannot read /dev/console after reboot AIX

I use < /dev/console when running Micro-Focus cobol programs in background cron jobs instead of < /dev/null because then we don't get an warning about the input file not supporting ioctl. The ...
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Is there a standard POSIX way of doing `tac` [duplicate]

Looks like at least IBM AIX and HP-UX don't have the tac command by default. Is there a way to do this using just basic posix standard shell utilities available on all UNIX systems? Furthermore, is ...
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391 views

numfsbufs and mount/remount of File Systems

What is the right the procedure to set the numfsbufs parameter? The current value of the parameter is 196 App_Server:>ioo -o numfsbufs numfsbufs = 196 The details of the server (prtconf ...
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101 views

How to backup all installed software/packages on AIX?

Are there any ways to backup all the packages on an AIX 6.1 machine?
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Can ksh on AIX be configured to use the tab key for filename completion?

I have some AIX 7 servers that are restricted to what software I can install and wonder if I can get ksh to use the tab key to complete filenames at the shell promot. The man pages are sparse for ksh ...
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3answers
4k views

what is the required ports to be opened on the firewall?

Currently I'll be installing one AIX server behind a firewall, I just asked to open port 443 to use the SSH protocol to access this UNIX server. I already changed the default ssh port to be 443 ...
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1answer
667 views

sudo hangs when run on remote host over ssh in a script without tty (-t)

I have an AIX 6.1 server where I need to run a remote sudo command in a bash script. Here is my bash script simplified: testSudo.sh #!/usr/bin/bash set -x sudo env I can run the sudo command ...
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4answers
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How to find out what is wasting space on “/”?

I can find out what is wasting space with this: du -sm * | sort +0nr | head -30 But what if "/" is filled 100%, and there are many mountpoints, ex.: /foo, /foo2, etc. How can I get a list of ...
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How do you track memory usage in a ksh93 script

We have a number of ksh scripts that run forever (inside a while loop), or at least until a shutdown event is delivered to them. We had a project where these scripts where converted to ksh93 (and ...
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432 views

AIX and Subversion

Very basic question regarding AIX and Apache Subversion: I need to install an Apache Subversion client onto an AIX 4.3 system. (Yes, this is a rather old version of AIX; the story is too long and ...
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Gnu Screen and vi - visualization issues

The scenario is as follows: gnu screen launched onto a scientific Linux distro ssh to an aix machine tried to edit a file with vi And this is what I got: "ex: 0602-108 screen is not a ...
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Preventing propagation of SIGINT to Parent Process

Considering a scenario where a Parent program (could be a C++ program or a Shell Script) executes a Child shell script, when we hit Control+C (or whatever character is configured to be the INTR ...
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294 views

AIX why does ps display the process name between square brackets? [duplicate]

On AIX 7 I have a process whose name appears between square brackets in the ps output: PID TTY TIME CMD 7798784 pts/2 0:00 [myproc] 9044154 pts/2 0:00 ps 10485770 pts/2 0:00 ...
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736 views

Using awk to parse AIX's lsuser output in stanza format

I'm creating a simple awk script to parse AIX's lsuser -f ALL output and return information in one line. A sample of the output is something like this. root: id=0 pgrp=something ...
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How to launch a program in text only mode if it support silent running

I have got a java program, which support text file input and auto running, can i put it in background running without GUI ? It prompt cannot set display. while there is no concern to view the ...