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06-04-2008
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Difference between "." and sh
Hi All,
I am using kshell and want to know difference between running ksh using "." and "sh" When we should run by sh and "." Thanks |
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06-04-2008
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The dot-command (e.g.: . myscript.sh) means read in the file in the current shell and execute it line-by-line
On the other hand, executing any of the following: sh myscript.sh ksh myscript.sh myscript.sh (assuming that myscript.sh has +x for me) results in calling a child shell and executing myscript.sh in the child's environment. Obviously, in the first form, any change in the environment (i.e. by commands like "cd <another-directory>") will happen in the current shell while in any of the second forms, they are happening in the child's environment and the current one is left unchanged. |
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