Answer Posted / radhakant kumar

awk '{if(NR==1) print $0}' filename

Write a command that will display files in the current directory, in a colored, long format.

1155

---

Which unix command lists files/folders in alphabetical order?

1659

---

What does the command ' $who | sort –logfile > newfile' do?

1238

---

What happens when we execute a unix command?

1088

---

What is command statement?

1103

---

What do chgrp command do?

1141

---

Why is awk called awk?

1019

---

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

---

hw will u use awk in replacing cahrs and files

3179

---

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1335

---

What command is used to check the current users?

1063

---

Why is shebang used?

1042

---

Explain how to use grep command to list find the records of a file containing 10 different strings?

1013

---

What is the unix command to confirm a remote host is alive or not?

1137

---

How does pipe () work?

1040

---