Answer Posted / subbu

1. df -T
Ex : Output

Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/hdb1 ext3 19228276 14737848 3513680 81% /
tmpfs tmpfs 383960 4 383956 1% /dev/shm

2.mount ---
Ex : Output

/dev/hdb1 on / type ext3 (rw,errors=remount-ro)
/dev/hdb2 on /home type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
usbfs on /proc/bus/usb type usbfs (rw)
automount(pid3558) on /data type autofs (rw,fd=4,pgrp=3558,minproto=2,maxproto=4)

When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

2201

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What is the use of cut command in unix?

1290

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Give the command for finding the current date.

1034

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What is the command to find hidden files in the current directory?

1138

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How does the system know where one command ends and another begins?

2172

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What is the significance of the 'tee' command?

1134

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Describe the zip/unzip command using gzip.

1096

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What does pipe () return?

1022

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What does grep v do?

1000

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What is the functionality of a top command?

1050

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What is grep short for?

993

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How do I delete files from command prompt?

1150

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What is the pipe command?

1122

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What is the first character of the output in ls l command?

1155

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Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1152

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