linux read line by line

12 methods for linux shell to process text line by line 1. cat $ filename | while read line example: function while_read_line {cat $ filename | while read line do www.2cto.com echo "$ line ": # This line does not do anything. The return value is 0

Early knowledge of sed and gawk in Linux Command Line and shell script ProgrammingThe sed editor of the Text Processing editor can process data in a data stream based on commands that are input to the command line or stored in the Command text file.

Line breaks in Linux and Windows  Carriage Return and line feed generate background The origins and differences between carriage return and line feed.Before the computer appeared, there was a kind of device called teletype model 33, which can

A way for Linux shells to read files line by rowIn Linux there are many ways to read a file row by line, the most common is the method in the following script, and is the most efficient, most used method. In order to give you an intuitive feeling,

For Linux users in China, it is a problem that the system often displays garbled characters when it needs to display Chinese characters. For some reason, when it needs a system with an English interface, however, the system cannot normally input and

There are many ways to read one file at a row in Linux, the most common of which is the method in the following script, and the most efficient and most used method. In order to give you an intuitive feeling, we will test the execution efficiency of

Line breaks are different in Linux and Windows. 1. Line breaks: the line breaks in www.2cto. com1.windows are \ r \ n, and 2. the line breaks in linux/unix are \ n. Here: Carriage return: \ r0x0d (13) return; # enter (carriagereturn) line break: \ n0

: Network Disk DownloadContent Introduction· · · · · ·This book is a comprehensive tutorial on Linux command-line and shell script programming. The book is divided into four parts: the first part introduces the Linuxshell command line, the second

Differences in line breaks between Linux and windows the LINUX line breaks do not wrap or appear black spots in Windows Notepad are caused by differences in line breaks between Linux and windows. Www.2cto.com first, let's look at the background of

One way is to useCatand anti-quotePS: Anti-quotes play the role of command substitution in Linux. Command substitution refers to the ability of the shell to interpolate the standard output of a command anywhere on a command line.The input format is