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Full Discussion: bash script question
Top Forums Shell Programming and Scripting bash script question Post 302326702 by ahmad.diab on Thursday 18th of June 2009 01:01:08 PM
Old 06-18-2009
Quote:
Originally Posted by jville
Can anybody be kind to explaing me what the lines below mean ?

eval line=$line
export $line
[[ -n ${line/*_EXE*} ]] || echo $line


Explanation:-

Code:
eval line=$line      #evaluate the value of line ($line and let line eqal it)
export $line     # export this value to the shell
[[ -n ${line/*_EXE*} ]] || echo $line    # if the $line (may be a file name) that have *_EXE* on its name , if it is null (-n) don't print it , else print it.
||   # let the 2nd command be executed if the first condition is false

 

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line(1)                                                            User Commands                                                           line(1)

NAME
line - read one line SYNOPSIS
line DESCRIPTION
The line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal. EXIT STATUS
Exit status is: 0 Successful completion >0 End-of-file on input. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), read(2), attributes(5) SunOS 5.10 1 Feb 1995 line(1)
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