How connect variable with a string in Bash?

I am writi开发者_运维百科ng a bash script , I used 1 variable in my bash file like below

list=`/home/ea/students'

I wrote below link in my bash but I got error

cat $list /admin.txt

Do you know how can I connect variable and string together?

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Firstly you need to use single quotes (''') around strings, not backticks ('`')

list='/home/ea/students'

To append a string to a variable, do the following:

list=${list}/admin.txt

Demo:

echo $list
/home/ea/students/admin.txt

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Try this:

list='/home/ea/students'
...
cat "${list}/admin.txt"

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You can go with either:

cat "$list/admin.txt"

In this case the braces '{}' are not mandatory as the / is not a valid identifier name character.

... or, if you need a variable, recent bash versions provide more concise way for appending:

bash-4.1$ list=/home/ea/students
bash-4.1$ list+=/admin.txt
bash-4.1$ printf '%s\n' "$list"
/home/ea/students/admin.txt