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Which command is used to display the characteristics of a process?
The ps Command The ps Command. The ps command enables you to check the status of active processes on a system, as well as display technical information about the processes. This data is useful for such administrative tasks as determining how to set process priorities.
The ps Command
See lessThe ps Command. The ps command enables you to check the status of active processes on a system, as well as display technical information about the processes. This data is useful for such administrative tasks as determining how to set process priorities.
Which of the following commands is used to identify the type of file by context?
file' The 'file' command is used to identify the types of file. This command tests each argument and classifies it. The syntax is 'file [option] File_name'.
file’
See lessThe ‘file’ command is used to identify the types of file. This command tests each argument and classifies it. The syntax is ‘file [option] File_name’.
The field separator in cut command is specified with
Cut by Field ( -f ) Using cut Command List of the fields number specified must be separated by comma. Ranges are not described with -f option. cut uses tab as a default field delimiter but can also work with other delimiter by using -d option. Note: Space is not considered as delimiter in UNIX.
Cut by Field ( -f ) Using cut Command
See lessList of the fields number specified must be separated by comma. Ranges are not described with -f option. cut uses tab as a default field delimiter but can also work with other delimiter by using -d option. Note: Space is not considered as delimiter in UNIX.
Which of the following directories contain all the Alias created by a user, including his login directory?
In Unix, the directory that contains all the aliases created by a user, including their login directory, is typically the user's home directory.
In Unix, the directory that contains all the aliases created by a user, including their login directory, is typically the user’s home directory.
See lessThe % key allows you
In Unix terminal environments, the % key, when used with certain text
In Unix terminal environments, the % key, when used with certain text
See lessWhich option is used with rm command to make the command prompt the user with each filename and a ?, before acting on it
So, -i is the option used with the rm command to prompt the user with each filename and a question mark before acting on it.
So, -i is the option used with the rm command to prompt the user with each filename and a question mark before acting on it.
See lessWhich of the following commands is used to obtain a list of all files by modification time?
ls -t lists the files in order of the time when they were last modified (newest first) rather than in alphabetical order.
ls -t lists the files in order of the time when they were last modified (newest first) rather than in alphabetical order.
See lessWhich of the following special shell variables is used to process number of the last background job?
Unix / Linux - Special Variables Sr.No. Variable & Description 6 $? The exit status of the last command executed. 7 $$ The process number of the current shell. For shell scripts, this is the process ID under which they are executing. 8 $! The process number of the last background command.
Unix / Linux – Special Variables
See lessSr.No. Variable & Description
6 $? The exit status of the last command executed.
7 $$ The process number of the current shell. For shell scripts, this is the process ID under which they are executing.
8 $! The process number of the last background command.
Which of the following command addresses all users who are currently hooked on?
In Unix, the wall command is used to send a message to all users who are currently logged in. It stands for "write all". This command sends a message to all terminals except those who have disabled messages using the mesg command. So, wall is the command that addresses all users who are currently hoRead more
In Unix, the wall command is used to send a message to all users who are currently logged in. It stands for “write all”. This command sends a message to all terminals except those who have disabled messages using the mesg command. So, wall is the command that addresses all users who are currently hooked on.
See lessIn vi editor, forward search is performed using the command.
In the vi editor, forward search is performed using the / command followed by the pattern you want to search for. This command allows you to search forward from the current cursor position for the specified pattern. So, /pat is the command used in the vi editor for forward search.
In the vi editor, forward search is performed using the / command followed by the pattern you want to search for. This command allows you to search forward from the current cursor position for the specified pattern. So, /pat is the command used in the vi editor for forward search.
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