How to inject keystrokes via a shell script?
I’m trying to inject keystrokes into the input daemon so as to simulate typing from a Bash script. Is this possible, and if so, how can I make it happen?
shell-script
Replace a long string with the sed command: Argument list too long error
I’m trying to execute this command
Finding largest file recursively
I am trying to find the largest file in a directory recursively. If there is a subdirectory inside of that directory the function needs to go inside that directory and check to see if the largest file is there. Once the largest file is found the output is displayed with the relative path name and the name and size of the largest file.
How to parse each line of a text file as an argument to a command?
I’m looking to write a script that takes a .txt filename as an argument, reads the file line by line, and passes each line to a command. For example, it runs command --option "LINE 1", then command --option "LINE 2", etc. The output of the command is written to another file. How do I go about doing that? I don’t know where to start.
Should I care about unnecessary cats?
A lot of command-line utilities can take their input either from a pipe or as a filename argument. For long shell scripts, I find starting the chain off with a cat makes it more readable, especially if the first command would need multi-line arguments.
How to introduce timeout for shell scripting?
I want to run a shell script that got a loop in it and it can go for ever which I do not want to happen. So I need to introduce a timeout for the whole script.
Best way to follow a log and execute a command when some text appears in the log
I have a server log that outputs a specific line of text into its log file when the server is up. I want to execute a command once the server is up, and hence do something like the following:
Comparing two strings in Bash
I have the following if block in my bash script:
Stateful bash function
I’d like to implement a function in Bash which increases (and returns) a count with every call. Unfortunately this seems non-trivial since I’m invoking the function inside a subshell and it consequently cannot modify its parent shell’s variables.
Using the not equal operator for string comparison
I tried to check if the PHONE_TYPE variable contains one of three valid values.