05-21-2018
Scripting Homework, need help
Hi I just started scripting in my Unix class, but can't understand it and have trouble with homework. This is my homework:
Dean needs a daily written report of the status of his Unix computer. He wants to obtain certain information about users and processes that are only accessible by executing utility commands. He does not want to have to execute these commands every day and has asked you to help him write a script that employs these utilities to obtain the information he needs. He would also like the results of the execution script to be saved to a file.
Step 1: Open the vi editor to create a script called Information. Add the contents from the following table to the script.
Headings Utilities
Today's date is: date
The current users logged into the system are: who , cut or awk, sort, uniq
My current startup directory is: pwd
Today's identification information is: id
The processes running on my system are: ps
Step 2: Save the script and exit to the shell. Make the script executable and proceed to run the Information script. Submit your script to Canvas.
Step 3: Redirect the output of the Information script to a file named DailyInfo that Dean can access daily.
can somebody guide on how to do it.
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LEARN ABOUT OPENDARWIN
script
SCRIPT(1) BSD General Commands Manual SCRIPT(1)
NAME
script -- make typescript of terminal session
SYNOPSIS
script [-a] [-k] [-q] [-t time] [file [command ...]]
DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an
interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
If the argument command ... is given, script will run the specified command with an optional argument vector instead of an interactive shell.
Options:
-a Append the output to file or typescript, retaining the prior contents.
-k Log keys sent to program as well as output.
-q Run in quiet mode, omit the start and stop status messages.
-t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The
default interval is 30 seconds.
The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if
ignoreeof is not set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not
manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
shells set this variable automatically).
SEE ALSO
csh(1) (for the history mechanism).
HISTORY
The script command appeared in 3.0BSD.
BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues.
When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual
echo logging. This does not work when in a raw mode where the program being run is doing manual echo.
BSD
June 6, 1993 BSD