42 files changed, 45 insertions, 45 deletions
diff --git a/Documentation/technical/api-object-access.txt b/Documentation/technical/api-object-access.txt
index a1162e5bcd..5b29622d00 100644
--- a/Documentation/technical/api-object-access.txt
+++ b/Documentation/technical/api-object-access.txt
@@ -1,7 +1,7 @@
 object access API
 =================
 
-Talk about <sha1_file.c> and <object.h> family, things like
+Talk about <sha1-file.c> and <object.h> family, things like
 
 * read_sha1_file()
 * read_object_with_reference()
diff --git a/Makefile b/Makefile
index 2e198c41dc..e7191a7e60 100644
--- a/Makefile
+++ b/Makefile
@@ -819,7 +819,7 @@ LIB_OBJS += ewah/bitmap.o
 LIB_OBJS += ewah/ewah_bitmap.o
 LIB_OBJS += ewah/ewah_io.o
 LIB_OBJS += ewah/ewah_rlw.o
-LIB_OBJS += exec_cmd.o
+LIB_OBJS += exec-cmd.o
 LIB_OBJS += fetch-object.o
 LIB_OBJS += fetch-pack.o
 LIB_OBJS += fsck.o
@@ -889,7 +889,7 @@ LIB_OBJS += refs/packed-backend.o
 LIB_OBJS += refs/ref-cache.o
 LIB_OBJS += ref-filter.o
 LIB_OBJS += remote.o
-LIB_OBJS += replace_object.o
+LIB_OBJS += replace-object.o
 LIB_OBJS += repository.o
 LIB_OBJS += rerere.o
 LIB_OBJS += resolve-undo.o
@@ -901,8 +901,8 @@ LIB_OBJS += server-info.o
 LIB_OBJS += setup.o
 LIB_OBJS += sha1-array.o
 LIB_OBJS += sha1-lookup.o
-LIB_OBJS += sha1_file.o
-LIB_OBJS += sha1_name.o
+LIB_OBJS += sha1-file.o
+LIB_OBJS += sha1-name.o
 LIB_OBJS += shallow.o
 LIB_OBJS += sideband.o
 LIB_OBJS += sigchain.o
@@ -937,7 +937,7 @@ LIB_OBJS += walker.o
 LIB_OBJS += wildmatch.o
 LIB_OBJS += worktree.o
 LIB_OBJS += wrapper.o
-LIB_OBJS += write_or_die.o
+LIB_OBJS += write-or-die.o
 LIB_OBJS += ws.o
 LIB_OBJS += wt-status.o
 LIB_OBJS += xdiff-interface.o
@@ -2156,8 +2156,8 @@ else
 $(OBJECTS): $(LIB_H)
 endif
 
-exec_cmd.sp exec_cmd.s exec_cmd.o: GIT-PREFIX
-exec_cmd.sp exec_cmd.s exec_cmd.o: EXTRA_CPPFLAGS = \
+exec-cmd.sp exec-cmd.s exec-cmd.o: GIT-PREFIX
+exec-cmd.sp exec-cmd.s exec-cmd.o: EXTRA_CPPFLAGS = \
 	'-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \
 	'-DBINDIR="$(bindir_relative_SQ)"' \
 	'-DPREFIX="$(prefix_SQ)"'
diff --git a/attr.c b/attr.c
index dfc3a558d8..03a678fa9b 100644
--- a/attr.c
+++ b/attr.c
@@ -10,7 +10,7 @@
 #define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "attr.h"
 #include "dir.h"
 #include "utf8.h"
diff --git a/builtin/add.c b/builtin/add.c
index 9ef7fb02d5..c9e2619a9a 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -9,7 +9,7 @@
 #include "lockfile.h"
 #include "dir.h"
 #include "pathspec.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "cache-tree.h"
 #include "run-command.h"
 #include "parse-options.h"
diff --git a/builtin/am.c b/builtin/am.c
index 9c82603f70..d834f9e62b 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -6,7 +6,7 @@
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "parse-options.h"
 #include "dir.h"
 #include "run-command.h"
diff --git a/builtin/describe.c b/builtin/describe.c
index de840f96a4..b5afc45846 100644
--- a/builtin/describe.c
+++ b/builtin/describe.c
@@ -6,7 +6,7 @@
 #include "blob.h"
 #include "refs.h"
 #include "builtin.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "parse-options.h"
 #include "revision.h"
 #include "diff.h"
diff --git a/builtin/difftool.c b/builtin/difftool.c
index ee8dce019e..aad0e073ee 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -15,7 +15,7 @@
 #include "config.h"
 #include "builtin.h"
 #include "run-command.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "parse-options.h"
 #include "argv-array.h"
 #include "strbuf.h"
diff --git a/builtin/hash-object.c b/builtin/hash-object.c
index 526da5c185..a9a3a198c3 100644
--- a/builtin/hash-object.c
+++ b/builtin/hash-object.c
@@ -9,7 +9,7 @@
 #include "blob.h"
 #include "quote.h"
 #include "parse-options.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 
 /*
  * This is to create corrupt objects for debugging and as such it
diff --git a/builtin/help.c b/builtin/help.c
index 598867cfea..2d51071429 100644
--- a/builtin/help.c
+++ b/builtin/help.c
@@ -4,7 +4,7 @@
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "parse-options.h"
 #include "run-command.h"
 #include "column.h"
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index d81473e722..78e66b9986 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -9,7 +9,7 @@
 #include "tree.h"
 #include "progress.h"
 #include "fsck.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "streaming.h"
 #include "thread-utils.h"
 #include "packfile.h"
@@ -1593,7 +1593,7 @@ static void read_idx_option(struct pack_idx_option *opts, const char *pack_name)
 	/*
 	 * Get rid of the idx file as we do not need it anymore.
 	 * NEEDSWORK: extract this bit from free_pack_by_name() in
-	 * sha1_file.c, perhaps?  It shouldn't matter very much as we
+	 * sha1-file.c, perhaps?  It shouldn't matter very much as we
 	 * know we haven't installed this pack (hence we never have
 	 * read anything from it).
 	 */
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 68ff4ad75a..2542c5244e 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -7,7 +7,7 @@
 #include "config.h"
 #include "refs.h"
 #include "builtin.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "parse-options.h"
 
 #ifndef DEFAULT_GIT_TEMPLATE_DIR
diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index 32736e0b10..bf01e05808 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -2,7 +2,7 @@
 #include "tree-walk.h"
 #include "xdiff-interface.h"
 #include "blob.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "merge-blobs.h"
 
 static const char merge_tree_usage[] = "git merge-tree <base-tree> <branch1> <branch2>";
diff --git a/builtin/notes.c b/builtin/notes.c
index 921e08d5bf..e5bf80eef1 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -14,7 +14,7 @@
 #include "blob.h"
 #include "pretty.h"
 #include "refs.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "parse-options.h"
 #include "string-list.h"
diff --git a/builtin/pull.c b/builtin/pull.c
index e32d6cd5b4..71aac5005e 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -9,7 +9,7 @@
 #include "config.h"
 #include "builtin.h"
 #include "parse-options.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "sha1-array.h"
 #include "remote.h"
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index c4272fbc96..4b68a28e92 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -7,7 +7,7 @@
 #include "pkt-line.h"
 #include "sideband.h"
 #include "run-command.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "commit.h"
 #include "object.h"
 #include "remote.h"
diff --git a/common-main.c b/common-main.c
index 7d716d5a54..b989e136b5 100644
--- a/common-main.c
+++ b/common-main.c
@@ -1,5 +1,5 @@
 #include "cache.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "attr.h"
 
 /*
diff --git a/config.c b/config.c
index 563853c4be..62c56099bf 100644
--- a/config.c
+++ b/config.c
@@ -9,7 +9,7 @@
 #include "config.h"
 #include "repository.h"
 #include "lockfile.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "strbuf.h"
 #include "quote.h"
 #include "hashmap.h"
diff --git a/contrib/update-unicode/README b/contrib/update-unicode/README
index b9e2fc8540..151a197041 100644
--- a/contrib/update-unicode/README
+++ b/contrib/update-unicode/README
@@ -1,10 +1,10 @@
 TL;DR: Run update_unicode.sh after the publication of a new Unicode
-standard and commit the resulting unicode_widths.h file.
+standard and commit the resulting unicode-widths.h file.
 
 The long version
 ================
 
-The Git source code ships the file unicode_widths.h which contains
+The Git source code ships the file unicode-widths.h which contains
 tables of zero and double width Unicode code points, respectively.
 These tables are generated using update_unicode.sh in this directory.
 update_unicode.sh itself uses a third-party tool, uniset, to query two
@@ -16,5 +16,5 @@ This requires a current-ish version of autoconf (2.69 works per December
 
 On each run, update_unicode.sh checks whether more recent Unicode data
 files are available from the Unicode consortium, and rebuilds the header
-unicode_widths.h with the new data. The new header can then be
+unicode-widths.h with the new data. The new header can then be
 committed.
diff --git a/contrib/update-unicode/update_unicode.sh b/contrib/update-unicode/update_unicode.sh
index e05db92d3f..aa90865bef 100755
--- a/contrib/update-unicode/update_unicode.sh
+++ b/contrib/update-unicode/update_unicode.sh
@@ -6,7 +6,7 @@
 #Cf Format          a format control character
 #
 cd "$(dirname "$0")"
-UNICODEWIDTH_H=$(git rev-parse --show-toplevel)/unicode_width.h
+UNICODEWIDTH_H=$(git rev-parse --show-toplevel)/unicode-width.h
 
 wget -N http://www.unicode.org/Public/UCD/latest/ucd/UnicodeData.txt \
 	http://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txt &&
diff --git a/exec_cmd.c b/exec-cmd.c
index ce192a2d64..8a8261746a 100644
--- a/exec_cmd.c
+++ b/exec-cmd.c
@@ -1,5 +1,5 @@
 #include "cache.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "quote.h"
 #include "argv-array.h"
 #define MAX_ARGS	32
diff --git a/exec_cmd.h b/exec-cmd.h
index ff0b48048a..ff0b48048a 100644
--- a/exec_cmd.h
+++ b/exec-cmd.h
diff --git a/fetch-pack.c b/fetch-pack.c
index adc1b68dd3..4a8bad8487 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -6,7 +6,7 @@
 #include "pkt-line.h"
 #include "commit.h"
 #include "tag.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "pack.h"
 #include "sideband.h"
 #include "fetch-pack.h"
diff --git a/git.c b/git.c
index 3a89893712..f598fae7b7 100644
--- a/git.c
+++ b/git.c
@@ -1,6 +1,6 @@
 #include "builtin.h"
 #include "config.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "help.h"
 #include "run-command.h"
 
diff --git a/help.c b/help.c
index 60071a9bea..a4feef2ffe 100644
--- a/help.c
+++ b/help.c
@@ -1,7 +1,7 @@
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "levenshtein.h"
 #include "help.h"
diff --git a/http-backend.c b/http-backend.c
index 88d2a9bc40..cc16cd04ad 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -5,7 +5,7 @@
 #include "pkt-line.h"
 #include "object.h"
 #include "tag.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "string-list.h"
 #include "url.h"
diff --git a/http-fetch.c b/http-fetch.c
index 8af380050c..885e471501 100644
--- a/http-fetch.c
+++ b/http-fetch.c
@@ -1,6 +1,6 @@
 #include "cache.h"
 #include "config.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "http.h"
 #include "walker.h"
 
diff --git a/http-push.c b/http-push.c
index c0998fd763..f308ce0195 100644
--- a/http-push.c
+++ b/http-push.c
@@ -6,7 +6,7 @@
 #include "refs.h"
 #include "diff.h"
 #include "revision.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "remote.h"
 #include "list-objects.h"
 #include "sigchain.h"
diff --git a/imap-send.c b/imap-send.c
index ffb0a6eca8..3573cbfb0f 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -24,7 +24,7 @@
 #include "cache.h"
 #include "config.h"
 #include "credential.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "parse-options.h"
 #ifdef NO_OPENSSL
diff --git a/list-objects-filter.c b/list-objects-filter.c
index 0ec83aaf18..247717561f 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -19,7 +19,7 @@
  * in the traversal (until we mark it SEEN).  This is a way to
  * let us silently de-dup calls to show() in the caller.  This
  * is subtly different from the "revision.h:SHOWN" and the
- * "sha1_name.c:ONELINE_SEEN" bits.  And also different from
+ * "sha1-name.c:ONELINE_SEEN" bits.  And also different from
  * the non-de-dup usage in pack-bitmap.c
  */
 #define FILTER_SHOWN_BUT_REVISIT (1<<21)
diff --git a/object.h b/object.h
index f13f85b2a9..b8e70e5519 100644
--- a/object.h
+++ b/object.h
@@ -37,7 +37,7 @@ struct object_array {
  * bundle.c:                                        16
  * http-push.c:                                     16-----19
  * commit.c:                                        16-----19
- * sha1_name.c:                                              20
+ * sha1-name.c:                                              20
  * list-objects-filter.c:                                      21
  * builtin/fsck.c:           0--3
  * builtin/index-pack.c:                                     2021
diff --git a/remote-curl.c b/remote-curl.c
index a7c4c9b5ff..8d2ffaf8de 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -4,7 +4,7 @@
 #include "strbuf.h"
 #include "walker.h"
 #include "http.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "pkt-line.h"
 #include "string-list.h"
diff --git a/remote-testsvn.c b/remote-testsvn.c
index c4bb9a8ba9..444d98059f 100644
--- a/remote-testsvn.c
+++ b/remote-testsvn.c
@@ -3,7 +3,7 @@
 #include "remote.h"
 #include "strbuf.h"
 #include "url.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "run-command.h"
 #include "vcs-svn/svndump.h"
 #include "notes.h"
diff --git a/replace_object.c b/replace-object.c
index 336357394d..336357394d 100644
--- a/replace_object.c
+++ b/replace-object.c
diff --git a/run-command.c b/run-command.c
index 84899e423f..12c94c1dbe 100644
--- a/run-command.c
+++ b/run-command.c
@@ -1,6 +1,6 @@
 #include "cache.h"
 #include "run-command.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "sigchain.h"
 #include "argv-array.h"
 #include "thread-utils.h"
diff --git a/sequencer.c b/sequencer.c
index a7d31e0525..5e3a50fafc 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -7,7 +7,7 @@
 #include "sequencer.h"
 #include "tag.h"
 #include "run-command.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "utf8.h"
 #include "cache-tree.h"
 #include "diff.h"
diff --git a/sha1_file.c b/sha1-file.c
index 77ccaab928..77ccaab928 100644
--- a/sha1_file.c
+++ b/sha1-file.c
diff --git a/sha1_name.c b/sha1-name.c
index 5b93bf8da3..5b93bf8da3 100644
--- a/sha1_name.c
+++ b/sha1-name.c
diff --git a/shell.c b/shell.c
index 234b2d4f16..0200d10796 100644
--- a/shell.c
+++ b/shell.c
@@ -1,6 +1,6 @@
 #include "cache.h"
 #include "quote.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "strbuf.h"
 #include "run-command.h"
 
diff --git a/unicode_width.h b/unicode-width.h
index 6dee2c77ce..6dee2c77ce 100644
--- a/unicode_width.h
+++ b/unicode-width.h
diff --git a/upload-pack.c b/upload-pack.c
index 4a82602be5..6261d4fab3 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -6,7 +6,7 @@
 #include "tag.h"
 #include "object.h"
 #include "commit.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "diff.h"
 #include "revision.h"
 #include "list-objects.h"
diff --git a/utf8.c b/utf8.c
index 2c27ce0137..4419055b48 100644
--- a/utf8.c
+++ b/utf8.c
@@ -81,7 +81,7 @@ static int git_wcwidth(ucs_char_t ch)
 	/*
 	 * Sorted list of non-overlapping intervals of non-spacing characters,
 	 */
-#include "unicode_width.h"
+#include "unicode-width.h"
 
 	/* test for 8-bit control characters */
 	if (ch == 0)
diff --git a/write_or_die.c b/write-or-die.c
index eab8c8d0b9..eab8c8d0b9 100644
--- a/write_or_die.c
+++ b/write-or-die.c