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I want to write a Bash script to process text, which might require a while loop. For example, a while loop in C: int done = 0; while(1) {. ... if(done) break; } I want to write a Bash script equivalent to that.
I have an infinite while loop that I only want to break out of if the user presses Ctrl - C. But there are 2 counters inside my while loop whose value I want printed out when I exit the while loop.
26 lis 2011 · You could send a SIGHUP (Ctrl-Z) or SIGTERM (Ctrl-C). The former merely pauses the program, you may resume with fg (or resume as a background process, using bg). If Ctrl-C doesn't work, you can try the lesser-known Ctrl-\ which sends SIGQUIT.
28 sty 2020 · In Bash, break and continue statements allows you to control the loop execution. Bash break Statement # The break statement terminates the current loop and passes program control to the command that follows the terminated loop. It is used to exit from a for, while, until, or select loop. s The syntax of the break statement takes the following form:
26 sty 2022 · Instead of waiting until the end condition, a break statement helps exit from a loop before the end condition happens. The control loop statements (break and continue) combine logically with conditional statements such as if elif else to create special situations inside loops.
11 lut 2024 · This statement immediately exits the execution of a loop and jumps to the subsequent statement after the loop. Here is a bash script with a break statement: #!/bin/bash for i in {1..5}; do echo "Iteration: $i" echo "Processing iteration for i = $i" if [ $i -eq 3 ]; then echo "Breaking out of the loop at iteration 3." break fi done
You can just use sleep 0.2 to pause the thread and end it with CTRL + C. Most terminals recognize CTRL + C as SIGINT (an Interrupt Signal), and any error handlers will recognize the Event as null, void, or None. It's sort of like telling the runtime execution to... just stop. Adjust depending on your reaction time.
