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plurals

PO
primarykey
Id
15596832
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-03-24T09:20:29.780
FavoriteCount
0
LastActivityDate
2013-03-24T09:31:07.177
LastEditDate
2013-03-24T09:31:07.177
LastEditorUserId
1458569
OwnerUserId
1458569
ParentId
15596826
PostTypeId
2
Score
10
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0
LastEditorDisplayName
text
Body
There are no difference between <code>$*</code> and <code>$@</code>, but there is a difference between <code>"$@"</code> and <code>"$*"</code>. <pre><code>$ cat 1.sh mkdir "$*" $ cat 2.sh mkdir "$@" $ sh 1.sh a "b c" d $ ls -l total 12 -rw-r--r-- 1 igor igor 11 mar 24 10:20 1.sh -rw-r--r-- 1 igor igor 11 mar 24 10:20 2.sh drwxr-xr-x 2 igor igor 4096 mar 24 10:21 a b c d </code></pre> We gave three arguments to the script (<code>a</code>, <code>b c</code> and <code>d</code>) but in "$*" they all were merged into one argument <code>a b c d</code>. <pre><code>$ sh 2.sh a "b c" d $ ls -l total 24 -rw-r--r-- 1 igor igor 11 mar 24 10:20 1.sh -rw-r--r-- 1 igor igor 11 mar 24 10:20 2.sh drwxr-xr-x 2 igor igor 4096 mar 24 10:21 a drwxr-xr-x 2 igor igor 4096 mar 24 10:21 a b c d drwxr-xr-x 2 igor igor 4096 mar 24 10:21 b c drwxr-xr-x 2 igor igor 4096 mar 24 10:21 d </code></pre> You can see here, that <code>"$*"</code> means always one single argument, and <code>"$@"</code> contains as many arguments, as the script had. "$@" is a special token which means "wrap each individual argument in quotes". So <code>a "b c" d</code> becomes (or rather stays) <code>"a" "b c" "d"</code> instead of <code>"a b c d"</code> (<code>"$*"</code>) or <code>"a" "b" "c" "d"</code> (<code>$@</code> or <code>$*</code>). Also, I would recommend this beautiful reading on the theme: <a href="http://tldp.org/LDP/abs/html/internalvariables.html#ARGLIST" rel="noreferrer">http://tldp.org/LDP/abs/html/internalvariables.html#ARGLIST</a>
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1. This table or related slice is empty.
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1. POWhat is the difference between $@ and $* in shell script?
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1. PTAnswer
UserLastEditorUserId
1. USIgor Chubin
UserOwnerUserId
1. USIgor Chubin
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1. POWhat is the difference between $@ and $* in shell script?
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1. VO
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