if [[ ${arr[*]} == *sub_string* ]]; then printf '%s\n' "sub_string is in array." fi case模式 case "$var" in *sub_string*) # Do stuff ;; *sub_string2*) # Do more stuff ;; *) # Else ;; esac 讲解 知识点就一个,* 通配符匹配任意数量的字符(包括零个字符) 判断字符串...
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if else if else 语法格式: if condition then command1 command2 ... commandN else command fi if-elif-else 语法格式: if condition1 then command1 elif condition2 then command2 else commandN fi for 循环 for 循环一般格式为: for var in item1 item2 ... itemN do command1 command2 ... co...
==:用于比较条件表达式中两个值是否相等。例如,if [ "$name" == "linuxmi" ]; then echo "Hello, linuxmi!"; fi将输出“Hello, linuxmi!” 如果变量的name值为“linuxmi”。 !=:用于比较条件表达式中的两个值是否不相等。例如,if [ "$name" != "linuxmi" ]; then echo "You're not linuxmi!
${array_name[N]} 💡 Like most other programming languages, the array starts at index 0 in Bash shell. This means the first element has index 0, the second element has index 1 and thenthelement has indexn-1. So, if you want to print the SUSE, you'll use: ...
ARRAY[$I]=$RANDOM echo -n "${ARRAY[$I]} " done echo declare -i MAX=${ARRAY[0]} INDEX=$[${#ARRAY[*]}-1] for I in `seq 1 $INDEX`; do if [ $MAX -lt ${ARRAY[$I]} ]; then MAX=${ARRAY[$I]} fi done echo "ARRAY_MAX is $MAX" ...
Security Insights Additional navigation options Files master .github release utils .editorconfig .remarkrc LICENSE README.md format.bash install.bash mangadl.bash merge.bash tools.bash Latest commit Akianonymus Fix manganato | A alias to manganelo |Fix#7 ...
In the array slicing method, there are two command-centric syntaxes: echo ${array_name[@ or *]: Start} and ${array_name[@ or *]:Start:Count}. The 1st command ${array_name[@ or *]:Start} starts printing elements from the Start index up to the end. For instance, if the value ...
if [[ $var != *sub_string* ]]; then printf '%s\n' "sub_string is not in var." fi # This works for arrays too! if [[ ${arr[*]} == *sub_string* ]]; then printf '%s\n' "sub_string is in array." fiUsing a case statement:case...