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Top Forums Shell Programming and Scripting sed to read and write to very same file Post 302078320 by jim mcnamara on Thursday 29th of June 2006 12:29:30 PM
Old 06-29-2006
Code:
sed 's'/2006/2007/g' oldfile > tmpfile ; mv tmpfile oldfile

 

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tmpfile(3S)															       tmpfile(3S)

NAME
tmpfile() - create a temporary file SYNOPSIS
DESCRIPTION
creates a temporary file by generating a name through (see tmpnam(3S)), and returns a corresponding pointer. If the file cannot be opened a NULL pointer is returned. The file is automatically deleted when the process using it terminates. The file is opened for update Notes On HP-UX systems, the mode is equivalent to the mode. ERRORS
The function will fail if: [EOVERFLOW] The named file is a regular file and the size of the file cannot be represented correctly in an object of size in this environment. Additional values may be set by the underlying function (see fopen(3S)). SEE ALSO
creat(2), unlink(2), mktemp(3C), fopen(3S), fgetpos64(3S), tmpnam(3S), thread_safety(5). STANDARDS CONFORMANCE
tmpfile(3S)
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