8 сент. 2012 г. · To do OR you use ||. Whether you use [ or [[ or test or (( all depends on what you need on a case by case basis.

16 мар. 2015 г. · || is the OR operator. It executes the command on the right only if the command on the left returned an error.

12 нояб. 2014 г. · The shell runs this command with the options given. In your case, there will be one invocation with the four options $x , == , Y , and ] , and ...

8 окт. 2012 г. · Shells do not uses regular expressions for argument expansion. You can enable the extended pattern matching by $ shopt -s extglob.

8 февр. 2018 г. · The logic of ($1 != 1) OR ($1 != 2) is flawed. If $1 is 1 then it is not equal to 2 so the test will be true. Also, if $1 is 2 then it is not equal to 1 so the ...

21 нояб. 2016 г. · This is to be expected. When one of the terms of || operator evaluates to true , the value of the whole sequence becomes true .

23 нояб. 2017 г. · I want to write a script in bash which is checking the user input if it is equal to stringA or stringB and in case it is equal to one of these strings it ...

29 мар. 2022 г. · The || (OR) operator evaluates the expression on its left hand side (LHS). If the the LHS is TRUE, the result of the || becomes TRUE, and the right hand side ( ...

9 янв. 2019 г. · The [[ and ]] operators are for explicit comparative tests. If you want to check two command results, just use the shell:

27 авг. 2016 г. · I am a little bit confused on what do these operators do differently when used in bash (brackets, double brackets, parenthesis and double parenthesis).