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if we create a file, in that 10 rows(means 1,2,....9,10
like). i want 7 row exactly, which command use in unix?
plz send this question.
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Answer / manu
if you want 1 to 7 row then
head -7 filename
if you want only 7th row exactly then
head -7 filename|tail -1
or
tail +7 filename|head -1
or
cat -n filename|grep '^7' filename
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / sivaprasad
hi, this is sivaprasad from school of IT.
If you want exactly 7 line u can use sed command as follows
$sed -n '7,7p' filename
ok.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / niranjan
To display first 7 lines of file:-
1) head -7 filename
2) cat filename|head -7
To display only 7th line of file:-
1) head -7 filename|tail -1
2) cat filename|head -7|tail -1
3) tail +7 filename|head -1
choice is ur's..Which one u feel looks gud...:):):)
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / krishna reddy
sed -n '7p' <filename>
or
head -8 <filename>|tail -1
| Is This Answer Correct ? | 0 Yes | 0 No |
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<stdlib.h> # include <stdio.h> 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:
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