I have had so many instances where I wanted to check if a value was present in an array or not. You can probably iterate over all the array items and check it individually, but what if I give you the red pill? I have created an array in which there is a stringasdfand I want to...
2: argument1 为待检测元素 function containsElement() {foritemin"${@:2}";do[["$item"=="$1"]] &&return0donereturn5} A=("one""two""three four")ifcontainsElement"three four""${A[@]}"; then echoinfi 3: function containsElement() { local value=$1shiftforitemin"${@:1}";do[[...
To check if a Bash array contains a value, use the echo command and pipe it to grep command to search the value from the defined array. Use the grep Command 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 #!/bin/bash #declare an array my_array=("apple" "banana" "cherr...
array_contains () { local seeking=$1; shift local in=1 for element; do if [[ $element == "$seeking" ]]; then in=0 break fi done return $in } arr=(a b c "d e" f g) array_contains "a b" "${arr[@]}" && echo yes || echo no # no array_contains "d e" "${arr[...
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‘$’ regular expression operators to force it to match the entire string. The array variable BASH_REMATCH records which parts of the string matched the pattern. The element of BASH_REMATCH with index 0 contains the portion of the string matching the entire regular expression. Substrings ...
Thepatternwillmatchif itmatchesanypartofthe string. Anchor thepatternusingthe ‘^’and‘$’ regular expression operatorstoforce ittomatchthe entire string. Thearrayvariable BASH_REMATCH records which partsofthe string matched the pattern. The elementofBASH_REMATCHwithindex0containstheportionofthe string...
arr=(a b c "d e" f g) array_contains "a b" "${arr[@]}" && echo yes || echo no ...
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