1. Shell Programming and Scripting

I'm calling a program with a command line arguement containing a password. while the process is running anyone on the system can ps -ef and see the password. Is there a way to prevent this from happening. example PROGRAM USERNAME/PASSWD I've also tried PROGRAM `cat passfile` ... (7 Replies)

2. Programming

Hi , Could you tell me if I am right 1. Using fork(), pipe(), execlp() and dup() (see man 2 dup), write a C program executing the command ps -j in a parent process, displaying the result in a child process. #include <unistd.h> #include <errno.h> #include <stdio.h> #include <unistd.h>... (7 Replies)

3. UNIX for Advanced & Expert Users

Hi I have a shell script A which calls another 10 shell scripts which run in background. How do i make the parent script wait for the child scripts complete, or in other words, i must be able to do a grep of parent script to find out if the child scripts are still running. My Code: ... (1 Reply)

4. Shell Programming and Scripting

Hi All, I have a script which calls a child script with a parameter to be run in the background . childscript.ksh $a & Can any one suggest me how do i export a variable from the child script to parent script? Note that the child script is in background If the child script is in... (3 Replies)

5. Shell Programming and Scripting

Hi, I have a directory i want to just hide this directory. Could you please tell me the command to hide directory. (2 Replies)

6. UNIX for Dummies Questions & Answers

Hello. A bit of a puzzle here: I have a 3rd party executable, which requires the following parameters: parm1 = program_name, parm2=userid/password, parm3=additional flags. We tried passing password as a variable, but you can do grep, and see what the password actually is I found a bit... (2 Replies)

7. Programming

class B { public: void fns(void){//base def;} }; class D:public B { public: void fns(void) {//new def;} }; I was thinking the above is overriding but somewhere else i found the above is just hiding.Only virtual functions can be considered as overriding? This is the exact statement ... (1 Reply)

8. Homework & Coursework Questions

1. The problem statement, all variables and given/known data: I need to make an program that in a loop creates one parent and five children with fork(). The problem i'm trying to solve is how to delete the parent and child of the child´s process. 2. Relevant commands, code, scripts,... (0 Replies)

9. Shell Programming and Scripting

Hi everyone i am very new to linux , working on bash shell. I am trying to solve the given problem 1. Create a process and then create children using fork 2. Check the Status of the application for successful running. 3. Kill all the process(threads) except parent and first child... (2 Replies)

10. UNIX for Advanced & Expert Users

Hello All, I am using Linux. I have two scripts: inner_script.ksh main_wrapper_calling_inner.ksh Below is the code snippet of the main_wrapper_calling_inner.ksh: #!/bin/ksh ppids=() ---> Main array for process ids. fppids=() ---> array to capture failed process ids. pcnt=0 --->... (5 Replies)