23 окт. 2008 г. · string='My long string' if [[ $string == *"My long"* ]]; then echo "It's there!" fi Note that spaces in the needle string need to be placed between double ...

12 окт. 2022 г. · You can use grep "\*" filename if you need to check if a string within a file contains a "*". As * is a special character it is then necessary ...

25 нояб. 2010 г. · For string equality comparison, use: if [[ "$s1" == "$s2" ]]. For string does NOT equal comparison, use: if [[ "$s1" != "$s2" ]].

2 июл. 2012 г. · In Bash, if is to be followed with a command. If the exit code of this command is equal to 0, then the then part is executed, else the else part if any is ...

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

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.

30 июл. 2022 г. · I am trying to parse and validate a string in Bash which is comma separated. The expected input is: X4,Y1,Z5 Conditions: The string should have only X,Y or Z ...

16 мар. 2023 г. · You use '[ ]' in for tests in bash not for defining an array. You would use '( )' and separate the array elements by spaces not comma-separated.

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.

5 дек. 2021 г. · Double square brackets ( [[ ) and globs ( *"$SUB"* ) in string matching are bash syntax, and are not available in sh.