There are many commands that produce changeable output, like the case of FTP programs, the expect script may fail or stuck. To solve this problem, you can use wildcards for the changeable data to make your script more flexible. Working with Variables The set command is used to define varia...
The-dflag enables some diagnostic output, which primarily reports internal activity of commands such asexpectandinteract. Thisflag has the same effect as "exp_internal 1" at the beginning of anExpectscript, plus the version ofExpectis printed. (Thestracecommand isuseful for tracing statements, an...
# To set the variable with string literal set name "john" # To set the variable value which includes output of another command set proc_id "process id : [pid]" Note: For expect command line arguments, read6 Expect Script Command Line Argument Examples. Expect Expressions – expr command T...
Many commands produce changeable output, like the case of FTP programs, the expect script may fail or stuck. To solve this problem, you can use wildcards for the changeable data to make your script more flexible. Working with Variables You can use the set command to define variables in expe...
kill -STOP [pid] 发送SIGSTOP (17,19,23)停止一个进程，而并不消灭这个进程。 kill -CONT [...
In case, if you have written the code without interact command, then the script would exit immediately after sending the string “23\r”. Interact command does the control, hands over the job to the addition process, and produces the expected result. ...
line to prevent any flag-like interpretation byExpect. For example, the following willleave the original arguments (including the script name) in the variableargv. #!/usr/local/bin/expect Note that the usual getopt(3)andexecve(2)conventions must be observed when ...
For example, the following will leave the original arguments (including the script name) in the variable argv. #!/usr/local/bin/expect -- Note that the usual getopt(3) and execve(2) conventions must be observed when adding arguments to the #! line. The file $exp_library/expect.rc is ...
2. Output from expect We need to make sure we have expect installed. In Ubuntu, we install it with apt: $ sudo apt install expect -y In Fedora, we can install expect with dnf: $ sudo dnf -y install expect 2.1. Example Script Let’s create a Bash script that prompts us for input...
spawn– It initiates a new process and is added to invoke the script that you wish to automate the interactive sections. send– It sends the required response that would otherwise be inserted by the user. expect– It shows the line in the target script that awaits an output. ...