IGNORECASE: number (0) LINT: number (0) NF: number (0) NR: number (0) OFMT: string ("%.6g") OFS: string (" ") ORS: string ("\n") RLENGTH: number (0) RS: string ("\n") RSTART: number (0) RT: string ("") SUBSEP:
对于问题中的file.csv，您可以简单地使用AWK脚本，在字段上执行常规for循环，如下所示：
As a matter of fact, this is probably the best and most portable solution to convert text to uppercase from the shell. 18. Changing part of a string Using the substr command, you can split a string of characters at a given length. Here I use it to capitalize only the first character...
A number can easily be converted into a string. When a string is converted into a number, AWK will do so. The string "123" will be converted into the number 123. However, the string "123X" will be converted into the number 0. (NAWK will behave differently, and converts the string ...
awk '{ gsub(tolower(/pattern/), "replacement", tolower($field)); print }' filename In this command,tolower(/pattern/)converts the pattern to lowercase, andtolower($field)converts the field data to lowercase. Suppose you want to replace ‘Ms.’ or ‘Mr.’ with ‘Mx.’, regardless...
The substr function extracts a portion of a given string. In the above syntax: • input-string: The input string containing the substring. • location: The starting location of the substring. • length: The total number of characters to extract from the starting location. This parameter ...
AWK has a number of functions built into it that are always available to the programmer. This chapter describes Arithmetic, String, Time, Bit manipulation, and other miscellaneous functions with suitable examples.S.No.Built in functions & Description 1 Arithmetic Functions AWK has the following ...
The function toupper converts character case to upper case for the passed string. User Defined Functions You can define your function and use them like this: $ awk ' function myfunc() { printf "The user %s has home path at %s\n", $1,$6 ...
String functions There are many string functions, you can check the list, but we will examine one of them as an example and the rest is the same: $ awk 'BEGIN{x = "likegeeks"; print toupper(x)}' The function toupper converts character case to upper case for the passed string. User...
When theprintstatement is used to print numeric values,awkinternally converts the number to a string of characters and prints that string.awkuses thesprintffunction to do this conversion (see theSection 8.1.3inChapter 8). For now, it suffices to say that thesprintffunction accepts aformat spe...