Create a bash shell script that reads in a number from the
user. If the number is 1, print out the date. If the number
is 2, list the files in the current directory. If the number
is 3, print out who is currently logged onto the system. If
the number is anything else, print out an error message and
exit. Name this script "various.sh"
- 4 Answers
- 5550 Views
- I also Faced
- E-Mail Answers
Answer Posted / kasu
echo "Enter the number"
read i
if [ $i -eq 1 ];then
echo `date`
elif [ $i -eq 2 ];then
ls
elif [ $i -eq 3 ];then
who
else
echo "Nothing"
fi
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
What does chmod do?
How will you pass and access arguments to a script in linux?
c program to implement unix/linux command to block the signal ctrl-c and ctrl-\ signal during the execution ls -l|wc -l
Is powershell a language?
What is shell terminal?
How do I run a script from command prompt?
Is bash an operating system?
I want to monitor a continuously updating log file, what command can be used to most efficiently achieve this?
What are the various stages of a linux process it passes through?
determine the output of the following command: echo ${new:-variable}
How do I open the shell prompt?
Is shell a scripting language?
How will you emulate wc –l using awk?
Shifting positional parameter in Linux fedora core ? Hi I have written following shell script for display value of positional. But in 11th and 12 field will display without shifting command. May I know is it advance of Linux of programming code error? #!/usr/bin/bash echo "Bellow is the out of ps command" echo "`ps`" echo "The passing Parameter i.e output of \$1,2... value is:==> $11 " echo "Total number of passed argument \$# is:==> $#" echo "Passed argument names (\$*) are:==>$*" echo "This script PID(\$$) is :=>$$" echo "The name of executing script(\$0) is :==>$0" echo "The Parent ID of this script(\$PPID) is:==>$PPID" And my input to this script is ./scriptname arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 arg11 arg12 Output Is Bellow is the out of ps command PID TTY TIME CMD 2892 pts/0 00:00:00 bash 3172 pts/0 00:00:00 positional_para 3173 pts/0 00:00:00 ps The passing Parameter i.e output of $1,2... value is:==> arg11 Total number of passed argument $# is:==> 13 Passed argument names ($*) are:==>arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 arg11 arg12 arg13 This script PID($$) is :=>3172 The name of executing script($0) is :==>./positional_parameter The Parent ID of this script($PPID) is:==>2892 After the ps output please see the next line I.e $11 value comes out without shifting the parameter. How is it give me my friends
How are shells born?
