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tomasdev/how-to-patch-examples.sh

Last active January 21, 2020 12:10
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Guide to patch - diff (How to use patch)
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how-to-patch-examples.sh
# Create a patch file
diff -u file.old file.new > file.patch
# Apply a patch
patch < file.patch
# Create a backup before applying patch
patch -b < file.patch
# Create a versioned backup before applying patch
# Note: numbered is the mechanism -V uses, not free input
patch -b -V numbered < file.patch
# Validate patch without applying
patch --dry-run < file.patch
# Reverse patch (undo)
patch -R file.old < file.patch
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