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This article mainly introduces "how to achieve the terminal session playback function script made by Shell script". In the daily operation, I believe that many people have doubts about how to achieve the terminal session playback function script made by Shell script. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for everyone to answer the question of "how to realize the terminal session playback function script made by Shell script". Next, please follow the editor to study!

I. implementation code

File: Record.sh

The code is as follows:

#! / bin/bash

# Filename:Record.sh

Read-p "Please input the sesson filename you want to creat:" filename

Sesfile= "$filename.session"

Logfile= "$filename.timing.log"

If [- e $sesfile]; then

Echo "$sesfile is Exsit,Creat session file fault!"

Read-p "If you want to reload the file? [Ygamma N]:" flag

If ["$flag" = "Y"]; then

Rm $sesfile $logfile

Script-T2 > $logfile-a $sesfile

Else

Echo "Nothing to do!"

Fi

Else

Script-T2 > $logfile-a $sesfile

Fi

File: Replay.sh

The code is as follows:

#! / bin/bash

# Filename:Replay.sh

Read-p "Please input the session filename:" filename

Logfile= "$filename.timing.log"

Sesfile= "$filename.session"

If [- e $sesfile]; then

Scriptreplay $logfile $sesfile

Echo

Else

Echo "$filename is NOT Exsit!"

Fi

II. Program analysis

First of all, let's talk about what these two files are used for. Record.sh is used to record the commands you execute and the output of the screen, while Replay.sh is used to play back the content recorded by Record.sh.

In Record.sh, you are first asked to enter a file name to save the information, such as output, and then create two files in the program, which are formed by the file name you entered with different suffixes, such as output.timing.log and output.session, and then check whether the input file already exists. If so, ask whether to overwrite the old file with the new file, and if so, delete the original file. Create a new file and write the data, if not, do nothing. Enter a file name in Replay.sh, first determine whether the file exists, and play it if it exists.

In Record.sh, you can see that the parameters of script are two files. For ease of identification, I added a specific suffix to the input file name. Even on Linux, the file suffix is meaningless. One suffix .timing.log is used to store timing information, describing when each command is run, and the other file, with the suffix .session, is used to store command output. With these two files, you can achieve the playback function, which is a bit like the familiar lrc lyric file playback function under Windows, personally.

Because there are two kinds of output, it is necessary to use data stream redirection to output different output streams to different files. In Record.sh, we can also see that we use 2 > to write timing information to the file * .timing.log through stderr, and to write command execution information to the file * .session through >.

Replay.sh is relatively simple, it only needs to determine whether the input file exists or not, it can be played. If you want to play the files made in Record.sh above, just type output.

At this point, the study on "how to achieve the terminal session playback function script made by Shell script" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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