diff options
| -rw-r--r-- | bash.html.markdown | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/bash.html.markdown b/bash.html.markdown index afc46eb0..1f1c32c0 100644 --- a/bash.html.markdown +++ b/bash.html.markdown @@ -99,6 +99,10 @@ python2 hello.py 2> "error.err" # current directory. echo "There are $(ls | wc -l) items here." +# The same can be done using backticks `` but they can't be nested - the preferred way +# is to use $( ). +echo "There are `ls | wc -l` items here." + # Bash uses a case statement that works similarly to switch in Java and C++: case "$VARIABLE" in #List patterns for the conditions you want to meet @@ -109,8 +113,7 @@ esac # For loops iterate for as many arguments given: # The contents of var $VARIABLE is printed three times. -# Note that ` ` is equivalent to $( ) and that seq returns a sequence of size 3. -for VARIABLE in `seq 3` +for VARIABLE in {1..3} do echo "$VARIABLE" done |