Practice cat from memory. /proc/meminfo is the kernel's raw memory accounting. MemAvailable is the best gauge of free memory - includes page cache
cat /proc/meminfo
/proc/meminfo is the kernel's raw memory accounting. MemAvailable is the best gauge of free memory - includes page cache that can be freed.
Safety: Preview paths and redirections before changing files or streams.
cat filename
cat reads files sequentially and writes them to stdout. Despite the name (concatenate), the single-file form is its most common use. For large files prefer less so you can scroll.
Safety: Preview paths and redirections before changing files or streams.
Build the habit: BashDrill drills cat and the rest of the Bash workflow until the safe first move is automatic. Try a Bash drill.