Question

Display only first filed of each line from /etc/passwd file.

Answer 1

1.Dispaly only first field of each line from /etc/ passwd file

The first field of each line from /etc/passwd file can be displayed by using different methods such as cut, awk etc.

•  Using cut

  •  cut -d':' -f1 /etc/passwd

  • The first field that is username is displayed, here -f1 denotes that first fields needs to be printed.
• Using awk

  •  awk -F : '{print $1}' /etc/passwd 

  • The first field that is username is displayed, here $1 denotes that first fields needs to be printed.

2. Last 50-100 days modified files

• find is used in linux for searching/finding the files with desired attributes

•  find / -mtime +50 –mtime -100