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76 lines
3.4 KiB
Markdown
76 lines
3.4 KiB
Markdown
# which
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Finds a program file.
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Usage:
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> which <application> {flags}
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## Parameters
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- application: the name of the command to find the path to
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## Flags
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- --all: list all executables
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## Examples
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`which` finds the location of an executable:
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```shell
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/home/bob> which python
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━━━━━━━━┯━━━━━━━━━━━━━━━━━┯━━━━━━━━━
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arg │ path │ builtin
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────────┼─────────────────┼─────────
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python │ /usr/bin/python │ No
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━━━━━━━━┷━━━━━━━━━━━━━━━━━┷━━━━━━━━━
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/home/bob> which cargo
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━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━
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arg │ path │ builtin
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───────┼────────────────────────────┼─────────
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cargo │ /home/bob/.cargo/bin/cargo │ No
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━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━
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```
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`which` will identify nushell commands:
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```shell
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/home/bob> which ls
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━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━
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arg │ path │ builtin
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─────┼──────────────────────────┼─────────
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ls │ nushell built-in command │ Yes
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━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━
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/home/bob> which which
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━━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━
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arg │ path │ builtin
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───────┼──────────────────────────┼─────────
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which │ nushell built-in command │ Yes
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━━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━
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```
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Passing the `all` flag identifies all instances of a command or binary
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```shell
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/home/bob> which ls --all
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━━━┯━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━┯━━━━━━━━━
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# │ arg │ path │ builtin
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───┼─────┼──────────────────────────┼─────────
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0 │ ls │ nushell built-in command │ Yes
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1 │ ls │ /usr/bin/ls │ No
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━━━┷━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━┷━━━━━━━━━
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```
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`which` will also identify local binaries
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```shell
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/home/bob> touch foo
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/home/bob> chmod +x foo
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/home/bob> which ./foo
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━━━━━━━┯━━━━━━━━━━━━━━━┯━━━━━━━━━
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arg │ path │ builtin
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───────┼───────────────┼─────────
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./foo │ /home/bob/foo │ No
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━━━━━━━┷━━━━━━━━━━━━━━━┷━━━━━━━━━
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```
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