hash command in Linux with examples
hash command in Linux system is the built-in command of bash which is used to maintain a hash table of recently executed programs. It remembers and shows the program locations. It will give the full pathname of each command name.
hash [-lr] [-p pathname] [-dt] [name ...]
- -d: This is used to forget the remembered location of each NAME.
- -l: It will display in a format that may be reused as input.
- -p: pathname use PATHNAME as the full pathname of NAME.
- -r: Forget all remembered locations.
- -t: To display the remembered location of each NAME, preceding each location with the corresponding NAME if multiple NAMEs are given.
Example 1: hash command without any option
Example 2: hash command with -r option
Example 3: hash command with -l command
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