OhSudo — new macOS articlesNew macOS articles from OhSudo: practical fixes for DevOps engineers, SysAdmins and IT folks.https://ohsudo.com/en-us"zsh: permission denied" when running a script: the execute bit, and other causeshttps://ohsudo.com/articles/zsh-permission-denied/https://ohsudo.com/articles/zsh-permission-denied/Fix "zsh: permission denied" on macOS or Linux: add the execute bit with chmod +x, check the path is a file and not a folder, and spot noexec mounts and missing rights.Fri, 13 Nov 2026 00:00:00 GMTmacOSzshmacoschmodpermissionsscriptstroubleshootingcontact@ohsudo.com (OhSudo)macOS Terminal "Operation not permitted", even with sudo: Full Disk Access and SIPhttps://ohsudo.com/articles/macos-terminal-operation-not-permitted/https://ohsudo.com/articles/macos-terminal-operation-not-permitted/Fix macOS "Operation not permitted" in Terminal, even with sudo: give Terminal Full Disk Access, and understand System Integrity Protection and app permissions.Sun, 08 Nov 2026 00:00:00 GMTmacOSmacosterminaltccsippermissionstroubleshootingcontact@ohsudo.com (OhSudo)macOS "zsh: command not found: brew": add Homebrew to your PATHhttps://ohsudo.com/articles/zsh-command-not-found-brew/https://ohsudo.com/articles/zsh-command-not-found-brew/Fix "zsh: command not found: brew" on macOS: Homebrew lives in /opt/homebrew on Apple silicon. Add brew shellenv to .zprofile, or install it if it isn't there.Fri, 06 Nov 2026 00:00:00 GMTmacOSmacoshomebrewzshpathterminaltroubleshootingcontact@ohsudo.com (OhSudo)macOS "App is damaged and can't be opened": what it really means, and the safe fixhttps://ohsudo.com/articles/macos-app-is-damaged-and-cant-be-opened/https://ohsudo.com/articles/macos-app-is-damaged-and-cant-be-opened/Fix macOS "App is damaged and can't be opened. You should move it to the Trash": check the signature, remove the quarantine attribute with xattr, and know when not to.Thu, 05 Nov 2026 00:00:00 GMTmacOSmacosgatekeeperxattrquarantinecodesigntroubleshootingcontact@ohsudo.com (OhSudo)macOS "xcrun: error: invalid active developer path": fix it after a macOS updatehttps://ohsudo.com/articles/macos-xcrun-invalid-active-developer-path/https://ohsudo.com/articles/macos-xcrun-invalid-active-developer-path/Fix macOS "xcrun: error: invalid active developer path" when git, make or brew stop working: reinstall the Command Line Tools, or point xcode-select to Xcode.Thu, 05 Nov 2026 00:00:00 GMTmacOSmacosxcodegithomebrewcommand-line-toolstroubleshootingcontact@ohsudo.com (OhSudo)