Write a shell script to check whether the given input is prime or not?

Evangeline Treutel asked a question: Write a shell script to check whether the given input is prime or not?
Asked By: Evangeline Treutel
Date created: Tue, Jun 15, 2021 12:46 AM

Content

FAQ

Those who are looking for an answer to the question «Write a shell script to check whether the given input is prime or not?» often ask the following questions:

😳 How to check read input bash script?

  • The read builtin provides methods that user input may be caught within a bash script. To catch a line of input NAMEs and options are not required by read. When NAME is not specified, a variable named REPLY is used to store user input. To catch a word of input, the -d option is required. In the case of a word we would set -d to a space, read ‘-d ‘.

😳 How do i input into shell script?

The most used newline character

If you don't want to use echo repeatedly to create new lines in your shell script, then you can use the \n character. The \n is a newline character for Unix-based systems; it helps to push the commands that come after it onto a new line.

😳 How does shell pipe input into a script?

  • It takes an existing CSV file (the path to which is a variable in the script), and then creates a new output file .xls. The script has no positional parameters. The file name of the CSV is currently hardcoded into the script.

1 other answer

shell script for check whether the given no is prime or not??echo "input any number:"read nono=expr $noi=expr 2while [ $i -lt $no ]doif [ expr $no % $i -eq 0];thenecho "$no is not a prime no.."break 2fii=expr $i +1doneif [ $i -eq $no ];thenecho "$no is a PRIME no..."fi

Your Answer

We've handpicked 21 related questions for you, similar to «Write a shell script to check whether the given input is prime or not?» so you can surely find the answer!

Write a shell script to count the number of times is appears in a given text file?

You don't need a shell script to do this; use the 'grep' command with the '-c' option to count the number of occurrences of some pattern.

Read more

How to write a bash shell script in linux?

  • How to Write Shell Script in Linux/ Unix Shell Scripts are written using text editors. On your Linux system, open a text editor program, open a new file to begin typing a shell script or shell programming, then give the shell permission to execute your shell script and put your script at the location from where the shell can find it.

Read more

How to write a shell script on raspberry pi?

  • To begin, log in to your Raspberry Pi, and navigate to the directory where you want to save the script. Then open the Nano text editor and create a new file named hello-world.sh by entering this at the command prompt: sudo nano hello-world.sh. Now, enter this code into the text editor:

Read more

How do you write a shell script which counts the last 10 lines present in a given file?

You don't need a shell script to do this - just use the 'tail' command.

Read more

How do i write the output of a shell script?

  1. #!/bin/bash.
  2. #Script to write the output into a file.
  3. #Create output file, override if already present.
  4. output=output_file.txt.
  5. echo "<<<List of Files and Folders>>>" | tee -a $output.
  6. #Write data to a file.
  7. ls | tee $output.
  8. echo | tee -a $output.

Read more

How do you write an argument in a shell script?

Arguments or variables may be passed to a shell script. Simply list the arguments on the command line when running a shell script. In the shell script, $0 is the name of the command run (usually the name of the shell script file); $1 is the first argument, $2 is the second argument, $3 is the third argument, etc...

Read more

How do you write to a file in shell script?

  1. #!/bin/bash.
  2. #Script to write the output into a file.
  3. #Create output file, override if already present.
  4. output=output_file.txt.
  5. echo "<<<List of Files and Folders>>>" | tee -a $output.
  6. #Write data to a file.
  7. ls | tee $output.
  8. echo | tee -a $output.

Read more

How to check if string is blank in shell script?

  • You can't use else if here, because that would cause the "$myVar" == "" condition to be parsed even when the first condition is true. If you want to treat the empty and the undefined case in the same way, first set the variable: You can use test (1). For example: Both assume that $myVar is set.

Read more

Shell script to check if a string is a palindrome?

len=0i=1echo -n "Enter a String: "read strlen=echo $str | wc -clen=expr $len - 1halfLen=expr $len / 2while [ $i -le $halfLen ]doc1=echo $str|cut -c$ic2=echo $str|cut -c$lenif [ $c1 != $c2 ] ; thenecho "string is not palindrome"exitfii=expr $i + 1len=expr $len - 1doneecho "String is Palindrome"

Read more

How do you write a shell script which counts the number of lines and words present in a given file?

#!/bin/sh wc -lw "$1"

Read more

How do you write an if else condition in shell script?

  1. if statement. This block will process if specified condition is true…
  2. if-else statement…
  3. if..elif..else..fi statement (Else If ladder) ...
  4. if..then..else..if..then..fi..fi..(Nested if) ...
  5. Syntax: case in Pattern 1) Statement 1;; Pattern n) Statement n;; esac…
  6. Example 2:

Read more

How do you write and call a function in shell script?

You need to define your functions before you call them. Using () : process_install() { echo "Performing process_install() commands, using arguments [${*}]..." } process_exit() { echo "Performing process_exit() commands, using arguments [${*}]..." }

Read more

How do you input a bash script?

  1. ./script.sh my_argument.
  2. #!/usr/bin/env bash…
  3. ./script.sh…
  4. ./fruit.sh apple pear orange…
  5. #!/usr/bin/env bash…
  6. ./fruit.sh apple pear orange…
  7. © Wellcome Genome Campus Advanced Courses and Scientific Conferences.

Read more

How to check if a directory exists within a shell script?

  • What command can be used to check if a directory exists or not, within a Bash shell script? To check if a directory exists in a shell script, you can use the following: However, as Jon Ericson points out, subsequent commands may not work as intended if you do not take into account that a symbolic link to a directory will also pass this check.

Read more

How to check if a file exists in a shell script?

  • In the following I demonstrate several bash shell script examples for this use case. The easiest way to check if a file exists is to use the test command. With -f option, the test command returns true if the specified file exists.

Read more

Is shell script bash?

Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. Bash can also read and execute commands from a file, called a shell script…

Read more

Is shell script hard?

Shell scripting is not particularly difficult for those with the prerequisites. No experience with the underlying commands available — if you don't know how to use the individual tools nor even what problems they solve then it is of course difficult to put them together in a script.

Read more

What is shell script?

  • A shell script is a text file that contains a sequence of commands for a UNIX-based operating system.

Read more

How do you check file is exist or not in shell script?

  1. test -e filename [ -e filename ] test -f filename [ -f filename ] ...
  2. [ -f /etc/hosts ] && echo "Found" || echo "Not found" ...
  3. #!/bin/bash file="/etc/hosts" if [ -f "$file" ] then echo "$file found."

Read more

How do you check if two strings are equal in shell script?

To check if two strings are equal in bash scripting, use bash if statement and double equal to == operator. To check if two strings are not equal in bash scripting, use bash if statement and not equal to != operator.

Read more

Shell script in unix to check if a string is a palindrome?

len=0 i=1 echo -n "Enter a String: " read str len=echo $str | wc -c len=expr $len - 1 halfLen=expr $len / 2 while [ $i -le $halfLen ] do c1=echo $str|cut -c$i c2=echo $str|cut -c$len if [ $c1 != $c2 ] ; then echo "string is not palindrome" exit fi i=expr $i + 1 len=expr $len - 1 done echo "String is Palindrome"

Read more