notes/awk_built_in_functions.txt

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--------------------- Table 4.5 ---------------------
awk Built-in Functions
cos(expr) cosine of expr
exp(expr) exponential of expr: e^expr
getline() reads next input line; returns 0 if end of file, 1 if not
index(s1,s2) position of string s2 or s1; returns 0 if not present
int(expr) integer part of expr; truncates towards 0
length(s) length of string s
log(expr) natural logarithm of expr
sin(expr) sine of expr
split(s,a,c) split s into a[1]...a[n] on character c; return n
sprintf(fmt,...) format ... according to specification fmt
substr(s,m,n) n-character substring of s beginning at position m