Cron Expression Explainer
Translate cron expressions into plain English and list the next run times. Presets and a field-by-field reference included.
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chmod Calculator
Toggle read / write / execute and get octal (755) and symbolic (rwxr-xr-x) notation, including setuid, setgid and sticky bits.
Runs in your browser – nothing to install.
About this tool
Tick read, write and execute for owner, group and others – plus setuid, setgid and sticky – and get the octal (755) and symbolic (rwxr-xr-x) notation, the matching chmod commands, the umask and what it all means, with a warning for world-writable files.
Runs entirely in your browser – nothing you enter leaves this page.
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