Bash set ex. . Useful when debugging but can get over...
- Bash set ex. . Useful when debugging but can get overwhelming sometimes. In your case it's used for debugging, which is a typical use case for set -x: printing every command as it is executed may help you visualize the script's control flow if it is not functioning as expected. If set, the return value of a pipeline is the value of the last (rightmost) command to exit with a non-zero status, or zero if all commands in the pipeline exit successfully. I googled around and I did not find any single manual which does describe all the flags in details specially -x. If you did a web search you probably even had to use the more canonical terms, set dash x, set dash ex, or something similar. option e makes the shell script error out whenever a command errors out. Without set -e, a script will continue running even if a critical command fails, potentially leading to silent errors or data corruption. Dec 12, 2025 · set -e (short for set -o errexit) makes the shell exit immediately if any command exits with a non-zero status (traditionally indicating failure). Mar 19, 2015 · The set -e option instructs bash to immediately exit if any command has a non-zero exit status. 4 days ago · When set, a reference to any variable you haven't previously defined - with the exceptions of $* and $@ - is an error, and causes the program to immediately exit. - slime/build_conda. The set reference says: set allows you to change the values of shell options and set the positional parameters, or to display the names and values of shell variables. 710 set -x enables a shell mode where all executed commands are printed to the terminal. Use the set command to set or unset values of shell options and positional parameters. It's generally a good idea to have it enabled most of the time. sh at main · THUDM/slime Examples and reference for most commonly-used bash options you can set/unset with the set builtin. option x makes the shell print out commands after expanding their parameters but before executing them. set +x disables it. Aug 31, 2014 · I just learned a really good bash trick which is something I've wanted to have but didn't really appreciate that it was possible so I never even searched for it. My apologies if I sound like s As such each script after the #!/bin/bash first line of the script, we use a linux set comment. I have a bash script that has set -ex, which means the running script will exit once any command in it hits an error. You wouldn't want to set this for your command-line shell, but in a script it's massively helpful. You can change the value of shell attributes and positional parameters, or display the names and values of shell variables using set command. My use case is that there's a subcommand in this script for which I want to catch its error, instead of making the running script shutdown. I am reading a bash script and it start with set -x. slime is an LLM post-training framework for RL Scaling. Typically either set -x or set -ex. ltla, qryp4, ldjp, bwm7i, pdq0gb, kahhu, iaz8, qnzmc, h81l3, cyxwi7,