How do I compare two numbers in Unix?

How do I compare two numbers in bash?

Example: Comparing numbers in bash

Find out if 5 greater than 10, enter (type command at terminal): x=5 y=10 [ $x -gt $y ] echo $? In a bash shell non-zero output means false result i.e. $x is not greater than $y. Try the following example (type command at terminal):

How do I compare two lists in Unix?

How to Compare Two Files in Unix: File Comparison Commands

1. Unix Video #8:
2. #1) cmp: This command is used to compare two files character by character.
3. #2) comm: This command is used to compare two sorted files.
4. #3) diff: This command is used to compare two files line by line.

How do you compare two variables in a script?

You can use the [ command (also available as test ) or the [[ … ]] special syntax to compare two variables. Note that you need spaces on the inside of the brackets: the brackets are a separate token in the shell syntax.

How do I compare 2 numbers in awk?

Comparison operators in Awk are used to compare the value of numbers or strings and they include the following:

1. > – greater than.
2. < – less than.
3. >= – greater than or equal to.
4. <= – less than or equal to.
5. == – equal to.
6. != …
7. some_value ~ / pattern/ – true if some_value matches pattern.

How do you compare numbers in shell?

Compare Numbers in Linux Shell Script

1. num1 -eq num2 check if 1st number is equal to 2nd number.
2. num1 -ge num2 checks if 1st number is greater than or equal to 2nd number.
3. num1 -gt num2 checks if 1st number is greater than 2nd number.
4. num1 -le num2 checks if 1st number is less than or equal to 2nd number.

How can I compare two files for differences?

On the File menu, click Compare Files. In the Select First File dialog box, locate and then click a file name for the first file in the comparison, and then click Open. In the Select Second File dialog box, locate and then click a file name for the second file in the comparison, and then click Open.

How do I compare two files in a list?

Click on the “Select Files or Folders” tab in the far left, to start a new comparison. Each comparison you run opens in a new tab. To start a new comparison, click on the “Select Files or Folders” tab in the far left, change the targets and click “Compare” again.

How do I compare two files in linux?

You can use diff tool in linux to compare two files. You can use –changed-group-format and –unchanged-group-format options to filter required data. Following three options can use to select the relevant group for each option: ‘%<‘ get lines from FILE1.

How do I compare two words in a shell script?

Comparison Operators

When comparing strings in Bash you can use the following operators: string1 = string2 and string1 == string2 – The equality operator returns true if the operands are equal. Use the = operator with the test [ command. Use the == operator with the [[ command for pattern matching.

How do you declare a variable in Shell?

Unix / Linux – Using Shell Variables

1. Defining Variables. Variables are defined as follows − variable_name=variable_value. …
2. Accessing Values. To access the value stored in a variable, prefix its name with the dollar sign ($) − …
3. Read-only Variables. …
4. Unsetting Variables.