Tag: if-statement

Operators and user input not found / unexpected while checking if users and groups exist in /etc/group and /etc/passwd

I can’t understand what’s wrong with my code. I’m trying to make it so that if the passed in username and group are both not found in /etc/group and etc/passwd echo both not found. If one but not the other is found echo one is found and finally if they are both found then echo both exist. He…

How can this bash script be made shorter and better? Is there a way to combine multiple curl statements and if statements in bash?

bash curl if-statement linux

The main script is scheduled and runs everyday and prints the success message everytime. If the status code is anything other than 200, $Status_code_1 or $Status_code_2, whichever is down prints the error code. The code is working fine but I want to know how can it be made shorter. Can the curl command from f…

Using Awk to print the unavailable record only once

awk if-statement linux

I am writing an awk script which looks like this inside: This is my file. This tries to print the else if method once, but instead, it prints for all of the lines that do not include the searched value. If I entered 20, my output looks like this: I have to use the awk command to print else if

how to use IF to test if a value meets a certain mask

bash if-statement linux

I have a variable and I need to test if it contain a formated value like this ……..-….-….-….-………… the variable can contem any value in any format, and I need to test if the value is like 1572C097-4452-4495-8369-C7606F2C867E I tried using sed to retrieve the…

implementing Excel if-like function with AWK

awk excel if-statement linux

I have a question about Excel-if-function implementation with AWK. I have a csv file having eight columns like below: Each field can take only integer values from 1 to 6. I would like to give one point if the first column is 1. In other cases, the score would be zero. In this MWE case, the point for all three

Bash-script to toggle espeak by keyboard shortcut

bash case-statement if-statement linux

To read a selected text in GUI out loud I use the command xsel | espeak-ng -v mb-us3 -p3 -s135. To stop it I use killall -s STOP espeak-ng. To start it again killall -s CONT espeak-ng. All 3 commands work, but the noob I am won’t let me archive correct results. The problem is in the if- and case-stateme…

If statements accepting yes or no in bash script?

bash conditional-statements if-statement linux

I am trying to accept user input of yes or no to a question and depending on the answer read back the value of my variable. I can never get commands attached to variables to work or my if statements to accept yes or no. It just keeps going to “not a valid answer”. Please let me know how to

How logical operators works

if-statement linux logical-operators shell unix

I tried below but it doesn’t work. Throwing some errors. Exp1 or expr2 should evaluate first & at result should be evaluated with expr3 ( &&) i tried as per suggestion, it throws error as Fyi- that date is val1 value. Answer You might see different results based on the shell or version, eg: …

How to build a conditional while statement in Bash?

bash if-statement linux while-loop

Hello Stackoverflow community, In order to make my code as less ‘copy-paste-ey’ as possible, I’m trying to come up with a smarter method to make it more compact. Is there any way to create a ‘conditional while’-statement (if that’s even a thing) in your script without havin…

Bash Script is not working [closed]

bash if-statement linux

Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 4 years ago. Improve this question When …