-
What is the command to find all of the files which have been accessed within the last one month?
sham2sushil
- May 2nd, 2010
find / -atime -30 -print 2>/dev/null2>/dev/null will discard all the error message. So it will list only the files
suresh
- Aug 9th, 2007
find / -atime -30
-
How to read and write of a open file?
sarikamagdum
- Nov 12th, 2009
Read from file:cat file_nameOr on terminal pagewise read as :more file_name.Write to file :echo "`cmd`" > file_name.Where cmd= any executable UNIX command. &n...
harish
- Dec 4th, 2006
We can use the read and write system call for thatread(fd,buff,BUF_SIZE);write(fd,buff,strlen(buff));assuming buff is a char string;
-
What are the steps for locking a file?
-
Write a korn shell script for renaming the filenames of the files stored in a folder to lower case.
Rohit_Ash
- May 27th, 2009
Tested script.#! /usr/bin/kshecho "start"for name in `ls -1`doecho "name $name"name1=`echo $name | tr [A-Z] [a-z]`;echo "name1 $name1"mv $name $name1;if [ -z $name ]thenexit;fidone
ENIAC
- Feb 24th, 2009
#!/bin/gawk -f## LowerFiles.gawk## Using GAWK, we can strip off the file name from the full path, # and rename it only when necessary (skip files that are already lowercase.)# U...
-
What is the UNIX command to wait for a specified number of seconds before exit
-
What is a zombie?
thanigaivelb
- Mar 6th, 2009
A zombie process is a process that completed execution but still in process table. When a process ends, all of the memory and resources associated with it are deallocated so they can be used by other ...
sanjay
- May 25th, 2007
A zombie is a process whose parent has exited but the child has not.
-
Linux Interview Questions
== Users and permissions practicum == * Rig it so everything in the folder gets deleted tonight at 10pm. Every night at 10pm.== Local security == * How do you feel about `sudo`? * What's the difference between `telnet` and `ssh`? What's a good use for each? * How do you ensure your users have hard-to-guess passwords?== Filesystem == * What is the difference between a symbolic and hard link? When...
-
Explain the unix file system?
mkannanmca86
- May 6th, 2008
A file system is a collection on BOOT BLOCK, SUPER BLOCK, I-LIST and DIRECTORY AND DATA BLOCK. Every directory have a pointer to a i-node(Information node) number and the directory name. Every i-...
Chandan Kumar
- Aug 26th, 2007
There are three file system in UNIX as below:-1. Ordinary File System: contains only data2. Directory File System: contains other files and directories?3. Device File System: represents all hardware devices.
-
What are the possible return status of kill() command?
vishgoel
- Mar 12th, 2008
0 or 1; depending upon the arguments given to kill. to enforce killing use kill -9
-
How would you remove a semaphore / shared memory whose owner processes have died?
raj
- May 17th, 2007
shared memory can be cleaned byshmcleanipcrm after finding the ids using ipcs...
-
How do you debug a core dump?
peter
- Jan 14th, 2006
> gdb a.out ? core core? backtrace
-
Why do we need a dynamic library for? How is it different from a static library
sk_seeker
- Dec 29th, 2007
My previous post just died on me. So, let me repeat what I wrote before. If both reach the thread, my apologies.Linker: What does it do??-------------------------The job of the linker is to combine on...
vthegde
- Dec 15th, 2007
I think the other advantage is, multiple processes can share the same image of the library. this would reduce the foorprint and memory requirements of the process during execution
-
-
-
-
-
-
-
-
Unix Programming Interview Questions
Ans