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author | EmilySeville7cfg <EmilySeville7cf@gmail.com> | 2022-08-19 10:20:15 +1000 |
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committer | EmilySeville7cfg <EmilySeville7cf@gmail.com> | 2022-08-19 10:20:15 +1000 |
commit | 7bcf933601fcdde118a2e745cb026b8c45910f51 (patch) | |
tree | d6526748936cf3d8bed42d0c0e2bbae66ebd6b20 /bash.html.markdown | |
parent | 242d5da837ff2458560431388b4848bae7e52e15 (diff) |
Update bash help:
- small grammar enhancements
Diffstat (limited to 'bash.html.markdown')
-rw-r--r-- | bash.html.markdown | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/bash.html.markdown b/bash.html.markdown index 53c3d96c..bccc5773 100644 --- a/bash.html.markdown +++ b/bash.html.markdown @@ -63,7 +63,7 @@ variable= "Some string" # => returns error: "Some string: command not found" # Using the variable: echo "$variable" # => Some string echo '$variable' # => $variable -# When you use the variable itself — assign it, export it, or else — you write +# When you use a variable itself — assign it, export it, or else — you write # its name without $. If you want to use the variable's value, you should use $. # Note that ' (single quote) won't expand the variables! # You can write variable without surrounding quotes but it's not recommended. @@ -96,7 +96,7 @@ other_variable="variable" echo ${!other_variable} # => Some string # This will expand the value of `other_variable`. -# Default value for variable: +# The default value for variable: echo "${foo:-"DefaultValueIfFooIsMissingOrEmpty"}" # => DefaultValueIfFooIsMissingOrEmpty # This works for null (foo=) and empty string (foo=""); zero (foo=0) returns 0. |