How to print the first array element?

1027

What is the first line of a shell script called?

1077

Is shell scripting a programming language?

1039

How to check if a directory exists?

1184

What is the difference between break and continue commands?

1089

How will you find the 99th line of a file using only tail and head command?

2530

i have 2 tables 4 colums table 1 respective values a1 6, a2 8,a3 9,a4 14 & table 2 respective values a1 6, a2 8, a3 9, a4 12. if compare 2 tables 3 colums values same then 4th column values 1)Qes diff >5 then (5 * diff value ) 2)Qes diff <5 the 5 3)Qes diff 5 then 5 print respective values..

2131

write a shell script to emulate the Id command of PRIMOS which lists files and directories. It list files first with a header FILES and then directories with a header DIRECTORIES. This command has several options. The main ones are. -file select files only -dir select directories only -reverse sort in reverse order -no_header put no header on the output -brief output the header only -size display the size of each file -help display Id´s syntax and options.

2774

What is echo in shell?

1098

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

2196

What is a shell script? Can you name some of its advantages?

1049

What are the different communication commands available in the shell?

961

What is the difference between bash and shell?

1114

What is the best shell scripting language?

1013

Can we run shell script in windows?

1127