Tag: operating systems

Append the content in file1 and cat par.3 par.4 par.5 >> report -> contents of files par.2 par.4 par.5 appended to file report

cat file1>file1 - file emptied and cat par.3 par.4 par.5 >> report -> contents of files par.2 par.4 par.5 appended to file report

Both will do the same poeration. Will append the data to the destination files.

cat file1>file1 - Wont do any operation in file 1 and cat par.3 par.4 par.5 >> report -> contents of files par.2 par.4 par.5 appended to file report

‘grep’ is a pattern search command. It will display the line which contains the pattern

‘grep’ is a pattern search command. It will display thepattern alone

‘grep’ can be used to search the patterns with the conditions

It is an efficient command to search the multiple patterns.

end pid

delete pid

kill pid

kill all

Tells the shell to arrange for the output of the preceding command to be passed as input to the following command

It is just used to connect two diifferent commands

It is useful when you use awk commands only

Tells the shell to arrange for the output

cat file2 - it will take the content to the file 2 and cat>file2 will display an error

Both used to display the contents

cat file2 - it displays the content of the file 2 and cat>file2 - if the file is empty it creates the content into the file2 and if the file has contents it overwrittens

Both used to append the contents

Changemode

chmod

chper

both chmod and chper

Will print the longest line

Will display all the content of the file

Print the count of the first line of the file.

Will give the count of the longest line

Alt + F7

Alt + F5

Alt + Enter

Alt + F10

Drops down the window control menu

Drops down the window File menu

Closes the Window

Maximize the Window

Restarts the PC

Loads the last known good Configuration

Boots in Safe Mode

None of the Above