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Find and Replace in multiple files (Shell script)

Shell Programming and Scripting

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Find and Replace in multiple files (Shell script).
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Old Unix and Linux 08-22-2002   -   Original Discussion by jatins_s
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asifraj asifraj is offline
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remember you are redirecting output to a file and then moving the file back to the original
what if the file sizes are of the order of tens of MBs.
secondly, the shell script would compulsorily do it for all the files in the directory.
but while using a file, you can customize your renaming process.