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fixed grammar and clarified no absolute/relative paths

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Remzi Arpaci-Dusseau
2018-02-11 16:48:16 -06:00
parent b89cd85705
commit 94405e7f86
1 changed files with 9 additions and 1 deletions
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processes-shell/README.md
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@@ -118,6 +118,14 @@ X_OK)`. If that fails, try "/usr/bin/ls". If that fails too, it is an error.
Your initial shell path should contain one directory: `/bin' Your initial shell path should contain one directory: `/bin'
Note: Most shells allow you to specify a binary specifically without using a
search path, using either **absolute paths** or **relative paths**. For
example, a user could type the **absolute path** `/bin/ls` and execute the
`ls` binary without a search path being needed. A user could also specify a
**relative path** which starts with the current working directory and
specifies the executable directly, e.g., `./main`. In this project, you **do
not** have to worry about these features.
### Built-in Commands ### Built-in Commands
Whenever your shell accepts a command, it should check whether the command is Whenever your shell accepts a command, it should check whether the command is
@@ -160,7 +168,7 @@ the file should be rerouted to the file `output` (the twist is that this
is a little different than standard redirection). is a little different than standard redirection).
If the `output` file exists before you run your program, you should simple If the `output` file exists before you run your program, you should simple
overwrite them (after truncating it). overwrite it (after truncating it).
The exact format of redirection is a command (and possibly some arguments) The exact format of redirection is a command (and possibly some arguments)
followed by the redirection symbol followed by a filename. Multiple followed by the redirection symbol followed by a filename. Multiple