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Unix/Linux OS/Questions Answered by Expert Suchitra Joshi
| Subject | Date Asked |
| UNIX SHELL SCRIPTING | 6/16/2011 |
| Q: cron query same for all IBM-AIX,SOLARIS and HP-UX..please clarify..same syntax will work all the ... A: Please check the following links - http://en.wikipedia.org/wiki/Cron ... | |
| Need Help Regarding Shell Script | 5/27/2011 |
| Q: I'm using Putty to remotely connect to the Unix Machine. I just want to download a .txt file in my ... A: For transferring files between Unix and Windows, you have to use ftp. Following are some examples - ... | |
| taking output from | 12/8/2010 |
| Q: i am reading a configuration file and want to extract the values from it in my shell script. i want ... A: It is very difficult to give the actual code. But you can try using sed or awk programming ... | |
| Shell Script Unix | 12/1/2010 |
| Q: in a shell script.i have an instruction "#cd ~lxt3/p31106" ,what does this mean? A: Also called a "squiggle" or "twiddle," the symbol is used as a prefix to a user login name to ... | |
| awk in BASH script | 11/1/2010 |
| Q: When we create BASH scripts. Usually we will include shebang - #!/usr/bin/bash or #!/bin/bash at the ... A: Since the shebang indicates which interpreter to use for the scripts, the scripts with awk commands ... | |
| best linux command line tut/book | 8/13/2010 |
| Q: I'm a programmer/student and if you can suggest any online tutorial or book that could get me even ... A: There are many sites you can visit (thr' google), once you know what exactly you want. Here are ... | |
| Sun Solaris Or Linux | 5/19/2010 |
| Q: my name is prateek patwal.. i m graduate .. i m rhce certified. but i din't get job so far.. now i m ... A: I am not aware of rhce certification. But Sun Solaris is very good for your future. Many companies ... | |
| incrimenting variable containing characters | 3/31/2010 |
| Q: how do we incriment variable that has characters? like a variable var has a value "c" and after ... A: I did not find any way to increment the letters other than the below one - alphabet="a b c d e" # ... | |
| Linux commands | 3/10/2010 |
| Q: .Can I know what are the possible linux commands to find Cpu utilization per process other than ... A: Apart from top,ps,mpstat and sar commands, you can also use iostat to find CPU utilization. It ... | |
| Linux or Solaris | 1/27/2010 |
| Q: Hey Suchitra, I am an expert just like you but on Microsoft platform. Now I want to learn ... A: I think both Linux and Solaris have equal opportunities in administration area. As far as OS is ... | |
| unix | 12/8/2009 |
| Q: Madam,thank you for your previous replies to my questions,I have a couple of questions to ask ... A: Following are the answers - 1. grep -i "tendulkar," file-1 The -i option specifies that the case ... | |
| use of "cat" command in unix | 12/7/2009 |
| Q: Madam, My question is about use of cat command to perform a series of action s in unix os ... A: Assuming you will type the text on screen, here are the commands - 1. cat Welcome Home - Type ... | |
| multiple argements to script | 11/15/2009 |
| Q: How you feed multiple arguments to a script in bash? like ./script One Two Three Four ..so on (with ... A: You can try using the bash getopts function. Please see the below link- ... | |
| echo command | 10/27/2009 |
| Q: If i want to output information about a file in this format: -rw------- 1 lczegel users 270 Jan ... A: Sorry for the delay. You can try creating a script with the following code in it. Let me know if it ... | |
| echo command | 10/26/2009 |
| Q: If i want to output information about a file in this format: -rw------- 1 lczegel users 270 Jan ... A: You can use the ls command to display the files in particular directory as follows - ls -l (This ... | |
| echo command | 10/26/2009 |
| Q: If i want to output information about a file in this format: -rw------- 1 lczegel users 270 Jan ... A: I am not sure what is stored in $file. But you can try one of the following and check whether it ... | |
| Kernel version | 10/17/2009 |
| Q: I found google use linux as servers. http://en.wikipedia.org/wiki/Google_platform Can we know which ... A: I am not sure which kernel version Google uses and I think they do not disclose this information. ... | |
| octal codes | 10/7/2009 |
| Q: a) How do octal access control codes work? b) How do you set access controls with command line ... A: I am assuming by octal access control codes that you mean the octal codes set for file access ... | |
| display 30 days files | 10/5/2009 |
| Q: I am trying to write a script to delete every files in a directory except those that are less 30 ... A: To delete files (in directory /usr/your_dir) which are modified more than 30 days ago, there is a ... | |
| hi | 9/2/2009 |
| Q: hi i was wondering do you know a good site where i can download pico or vi text editor for free for ... A: You can try following sites - http://www.vim.org/download.php ... | |
| how to set up daemon with cron for python script | 8/20/2009 |
| Q: S. Jochi I want to set up a deamon with the cron command for a python script to execute every 10 ... A: If you are not able to run crontab -e, this means either of the following - 1) ... | |
| query | 8/12/2009 |
| Q: guide me about the use of crontab command A: Here is the info about crontab - 1) Crontab commands crontab -e (Create new or edit existing file) ... | |
| online linux man webpage | 3/20/2007 |
| Q: i am not on linux now. i am on XP now. but i need to MAN some commands. is there any webapge having ... A: Following site will be useful http://www.die.net/doc/linux/man/ You can go to the 'Names' section ... | |
| checking process ID | 3/4/2007 |
| Q: from where do i get information about the process ID of a process.what command to use A: If you know what process you want to check for use the following ps -ef|grep <process> where ... | |
| cpu utilization n memory utilization of a process | 12/27/2006 |
| Q: I want to get cpu utilization n memory utilization of a process through a script. Which will run ... A: You can write a script to get the cpu and memory utilization of a process using following statement ... | |
| shell script | 12/5/2006 |
| Q: I have two questions:- 1) Is there any differences in using $variable_name and ${variable_name} to ... A: 1) both are same to get the variable value. But braces are used when something is to be appended to ... | |
| ulimit -n problem | 11/30/2006 |
| Q: I am using “ulimit –n” to find number of file descriptor user can open. If I m running ... A: I am not sure of the problem. But you can check the shells in which the shell script is used and ... | |
| unix | 11/29/2006 |
| Q: 1.What is hard link & soft link? 2.What is the utility of ln command? 3.Why we use hard link & ... A: Following sections give you the required details Hard Link A hard link is essentially a label or ... | |
| AIX/UNIX script logging | 11/17/2006 |
| Q: I would like to log to a file each line run in any AIX script. I'm very new to AIX having spent ... A: I am not sure about AIX. But below is unix related material script is used to take a copy of ... | |
| unix | 11/6/2006 |
| Q: 1.What is the role of caret(^) symbol? 2.Explain about sed command? A: 1) The caret symbol can actually have two different meanings in regular expressions. Most of the ... | |
| unix | 10/19/2006 |
| Q: 1.What is utility of at command,batch command,cron command,kill command? A: Following are the details 1) at - Schedules a command to be ran at a particular time, such as a ... | |
| unix | 9/25/2006 |
| Q: 1.What is the utility of echo command? 2.Why we use $ in unix? 3.What is the use of cat command? ... A: 1. echo is generally used to display the output on screen. eg. echo "This is a test program" or echo ... | |
| Linux commands | 6/6/2006 |
| Q: I am using Ubuntu linux and I try to find the command in the shell: -Display the name of the current ... A: As I am using Unix, I am not sure of possible Linux commands. But you can try these out 1) Display ... | |
Unix/Linux OS
Answers by Expert:
Suchitra Joshi
Top Expert on this page
Expertise
I can answer questions related to Basic Unix commands, shell scripts, sed, awk, job scheduling & vi editor.
Experience
15 years of experience in Unix and Shell scripting
Education/Credentials
B.Sc (Electronics), Diploma in Computer Applications (DCA)
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