awk - Unix, Linux Command---reference

发布时间：2021-01-24 20:35:25 所属栏目：Linux 来源：网络整理

导读：http://www.tutorialspoint.com/unix_commands/awk.htm gawk - pattern scanning and processing language gawk ?[? POSIX ?or? GNU ?style options ]? -f ? program-file ?[? -- ?] file ...? gawk ?[? POSIX ?or? GNU ?style options ] [? -- ?]? program-

The following special filenames may be used with the?|&?co-process operator for creating TCP/IP network connections.

lport/rhost/rportlport?to remote hostrhost?on remote port?rport. Use a port of?0?to have the system pick a port.lport/rhost/rportlport/rhost/rportOther special filenames provide access to information about the running?gawk?process.These filenames are now obsolete.?Use the?PROCINFO?array to obtain the information they provide. The filenames are:

Description

Numeric Functions

AWK?has the following built-in arithmetic functions:

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y,?x) y/x?in radians.expr) expr,which is in radians.expr) expr) expr) N,between 0 and 1,such that 0 <=N?< 1.expr) expr,which is in radians.expr) expr]) expr?as a new seed for the random number generator. If no?expr?is provided,the time of day is used. The return value is the previous seed for the random number generator.String Functions

Gawk?has the following built-in string functions:

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