31 мая 2015 г. · Bash allow u to use =~ to test if the substring is contained. Ergo, the use of negate will allow to test the opposite.

27 мая 2021 г. · To test that a string ONLY contains characters in $validChars, we can use bash's extended pattern matching.

10 июл. 2019 г. · In bash, I need to check to see if a string does not contain a list of values. And if it does not then add it to an array.

21 февр. 2017 г. · A simple if statement to test if a 'string' is not in file.txt : #!/bin/bash if ! grep -q string file.txt; then echo "string not found in file!

7 мая 2019 г. · First, use the ${name?:msg} form of parameter expansion to verify you have non-empty values.

31 авг. 2018 г. · I am wanting to use a switch/ case statement in bash to check if a file name which is a string contains something but also does not.

26 апр. 2019 г. · I tried to define a loop to check if the path string does not contains the string "OTHER" only then to continue to other commands but for some reason it is not ...

10 июн. 2013 г. · I looked over all the documentation on how to check if a str is not within a variable, but it always thows the same error, which I assume may be ...

9 апр. 2013 г. · I can create the positive logic of comparing a string to an array. Although I want the negative logic and only print values not in the array.

23 окт. 2008 г. · Note that spaces in the needle string need to be placed between double quotes, and the * wildcards should be outside. Also note that a simple ...