Question { 10901 }

Suppose 1000 processes are running on the system out of those
if you have to show only certain process ids which command
will you use?

Answer

ps -aef grep pid

Question { 9994 }

What is the syntax of grep command and what is its use?

Answer

syntax

grep "filename or string name"


It is used to find the values quickly

Question { 15228 }

How do you move a process which is running background to
foreground?

Answer

nohup perl driver.pl &

Question { 8710 }

Which command will you use to change the permissions on file?

Answer

chmod -R 755

Question { 8041 }

What is the use of pipes?

Answer

Pipe command is used for combing 2 values
for eaxmple

who|sort

Question { 17586 }

How do you know about running processes of a particular
user?

Answer

watch "ps -aef|grep "driver.pl""

Question { Nokia, 180653 }

How do you create a file in UNIX

Answer

using touch comamnd


touch filename

Question { QA, 67302 }

what is the difference between Touch & cat command

Answer

touch command is using for creating a file


cat command is printing a file

Question { QA, 17097 }

how will u execute a file in unix

Answer

chmod - R 755 foldername

Question { IBM, 10257 }

Why we are using UNIX OS when we are doing the testing in
our application?

Answer

IT PROVIDE MUCH SECURITY RATHER THAN WINDOWS

Question { Symphony, 15050 }

what is mount ,tell me about mount ,how can u use in real
time project??

Answer

mount will describes which rpms is taking to build

for example

platform_1009.0.1.9/"

Question { Altair, 15152 }

how to remotely move a file ??? that mean how to move a file
one machine to another machine ???

Answer

scp -R foldername root@172.34.1.11:/root/

Question { BitWise, 19146 }

Which mode is used for allowing file write,read and append
mode?

Answer

chmod - R 777

Question { Reliance, 27995 }

What is use of sed command?

Answer

Usage: sed [OPTION]... {script-only-if-no-other-script}
[input-file]...

-n, --quiet, --silent
suppress automatic printing of pattern space
-e script, --expression=script
add the script to the commands to be executed
-f script-file, --file=script-file
add the contents of script-file to the
commands to be executed
-i[SUFFIX], --in-place[=SUFFIX]
edit files in place (makes backup if
extension supplied)
-c, --copy
use copy instead of rename when shuffling
files in -i mode
(avoids change of input file ownership)
-l N, --line-length=N
specify the desired line-wrap length for
the `l' command
--posix
disable all GNU extensions.
-r, --regexp-extended
use extended regular expressions in the script.
-s, --separate
consider files as separate rather than as a
single continuous
long stream.
-u, --unbuffered
load minimal amounts of data from the input
files and flush
the output buffers more often
--help display this help and exit
--version output version information and exit

If no -e, --expression, -f, or --file option is given, then
the first
non-option argument is taken as the sed script to interpret.
All
remaining arguments are names of input files; if no input
files are
specified, then the standard input is read.

E-mail bug reports to: bonzini@gnu.org .
Be sure to include the word ``sed'' somewhere in the
``Subject:'' field.

Question { 29648 }

Give the command to display space usage on the UNIX file system.

Answer

df -h