This function splits the string str into fields by regular expression regex and the fields are loaded into the array arr. If regex is omitted, then FS is used.Example[jerry]$ awk 'BEGIN { str = "One,Two,Three,F
$ awk 'BEGIN { str = "One,Two,Three,Four" split(str, arr, ",") print "Array contains following values" for (i in arr) { print arr[i] } }' 输出结果为: Array contains following values One Two Three Four tolower( String ) 返回String 参数指定的字符串,字符串中每个大写字符将更改为...
If array is present, it is cleared, and then the zeroth element of array is set to the entire portion of string matched by regexp. If regexp contains parentheses, the integer-indexed elements of array are set to contain the portion of string matching the corresponding parenthesized subexpressio...
Awk 中的默认 IFS 是制表符和空格。 Awk: 遇到输入行时，根据定义的IFS，第一组字符为field one，访...
awk '{ if ($0 ~ /file1:str2/) nextfile; print $0 }' file1.txt file2.txt return 用于从用户自定义的函数中返回值。请注意,如果没有指定返回值,那么的返回值是未定义的 代码语言:javascript 代码运行次数:0 运行 AI代码解释 cat << EOF >> functions.awk function addition(num1, num2) { resul...
If array is present, it is cleared, and then the zeroth element of array is set to the entire portion of string matched by regexp. If regexp contains parentheses, the integer-indexed elements of array are set to contain the portion of string matching the corresponding parenthesized subexpressio...
If array is present, it is cleared, and then the zeroth element of array is set to the entire portion of string matched by regexp. If regexp contains parentheses, the integer-indexed elements of array are set to contain the portion of string matching the corresponding parenthesized subexpressio...
String before replacement = Hello, World String after replacement = Hello, Jerryindex(str,sub)index 函数用于检测字符串 sub 是否是 str 的子串。如果 sub 是 str 的子串,则返回子串 sub 在字符串 str 的开始位置;若不是其子串,则返回 0。str 的字符位置索引从 1 开始计数。
For %x and %X, it supplies a leading 0x or 0X respectively, only if the result is non-zero. For %e, %E, %f, and %F, the result always contains a decimal point. For %g and %G, trailing zeros are not removed from the result. The following example describes this − ...
$ awk 'BEGIN { str = "One,Two,Three,Four" split(str, arr, ",") print "Array contains following values" for (i in arr) { print arr[i] } }' 输出结果为: Array contains following values One Two Three Four tolower( String ) 返回String 参数指定的字符串,字符串中每个大写字符将更改为...