Bash If condition for not equal is not working as expected in shell
Bash If condition for not equal is not working as expected in shell script Stack Overflow If condition for not equal is not working as expected in shell script Ask ion Asked 6 years 4 months ago Modified 6 years 4 months ago Viewed 7k times 0
Shell script Using the not equal operator for string comparison , 202 I tried to check if the PHONE TYPE variable contains one of three valid values if PHONE TYPE NORTEL PHONE TYPE NEC PHONE TYPE CISCO then echo Phone type must be nortel cisco or nec exit fi The above code did not work for me so I tried this instead
The Not Equal Operator Bash Script Explained
The not equal operator in Bash represented by is a fundamental tool in Bash scripting It s used primarily in conditional statements which are the backbone of any script allowing you to make decisions and control the flow of your script Use of Not Equal in a Simple Script Let s dive into a simple example to illustrate this
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Bash Test Operations in If Statement LinuxSimply, 1 Equality Comparison Using eq The eq is an operator that checks if two numbers are equal The line if num1 eq num2 returns True if the num1 and num2 are equal The script below shows the use of it
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How to check if is not equal to zero in unix shell scripting
How to check if is not equal to zero in unix shell scripting How to check if is not equal to zero in unix shell scripting Ask ion Asked 10 years 9 months ago Modified 1 year 9 months ago Viewed 319k times 106 I have a script which uses test command to check if return code of last executed command is not equal to zero The code is as follows
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Fi ADVERTISEMENT Here VALUE1 and VALUE2 represent the numeric values being compared If VALUE1 is not equal to VALUE2 the code within the then block will be executed Examples To help you better understand the ne operator let s look at some examples Example 1 Basic Comparison ADVERTISEMENT 1 2 3 4 5 6 7 Using the ne Operator in Bash A Comprehensive Guide. You can use all the if else statements in a single line like this if whoami root then echo root else echo not root fi You can copy and paste the above in terminal and see the result for yourself Basically you just add semicolons after the commands and then add the next if else statement Awesome 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 string1 string2 The inequality operator returns true if the
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