grep: egrep -> grep -E, fgrep -> grep -F

Newer versions of GNU grep (after grep 3.7, not inclusive) will warn on
'egrep' and 'fgrep' invocations.

Convert usages within the tree to their expanded non-aliased counterparts
to avoid irritating warnings during ./configure and the test suite.

Signed-off-by: Sam James <sam@gentoo.org>
Reviewed-by: Fangrui Song <maskray@google.com>

10 files changed, 106 insertions, 106 deletions

diff --git a/iconvdata/big5.c b/iconvdata/big5.c
index 68c88cd78f..f469d41530 100644
--- a/iconvdata/big5.c
+++ b/iconvdata/big5.c
@@ -27,7 +27,7 @@
 /* Table for Big5 to UCS conversion. This is generated from the BIG5
    charmap, using the following command:
 
-	egrep "/x../x.." BIG5 | egrep -v "^% " | sed 's/%IRREVERSIBLE%//' | \
+	grep -E "/x../x.." BIG5 | grep -E -v "^% " | sed 's/%IRREVERSIBLE%//' | \
 	perl segA.pl > segA
 
    where segA.pl script is:
@@ -3600,45 +3600,45 @@ static const char from_ucs4_tab1[256][2] =
 
 ---------------------------------------------------------------------
 rm -f segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U02" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U02" | sort | \
 	perl segB2.pl 2 0x02C7 0x02D9 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U03" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U03" | sort | \
 	perl segB2.pl 3 0x0391 0x03C9 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U20[1-3]" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U20[1-3]" | sort | \
 	perl segB2.pl 4 0x2013 0x203B >> segB2
 
 ( Separate U20AC, U2103, U2105, U2109 )
 
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U216" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U216" | sort | \
 	perl segB2.pl 5 0x2160 0x2169 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U219" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U219" | sort | \
 	perl segB2.pl 6 0x2190 0x2199 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U22[1-6]" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U22[1-6]" | sort | \
 	perl segB2.pl 7 0x2215 0x2267 >> segB2
 
 ( Separate U2295, U2299, U22A5, U22BF )
 
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U2[56]" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U2[56]" | sort | \
 	perl segB2.pl 8 0x2500 0x2642 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U30" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U30" | sort | \
 	perl segB2.pl 9 0x3000 0x3029 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U31" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U31" | sort | \
 	perl segB2.pl 10 0x3105 0x3129 >> segB2
 
 ( Separate U32A3 )
 
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U33" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U33" | sort | \
 	perl segB2.pl 11 0x338E 0x33D5 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<U[4-9]" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<U[4-9]" | sort | \
 	perl segB2.pl 12 0x4E00 0x9FA4 >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<UF[678]" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<UF[678]" | sort | \
 	perl segB2.pl 13 0xF6B1 0xF848 >> segB2
 
 ( Separate UFA0C, UFA0D )
 
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<UFE" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<UFE" | sort | \
 	perl segB2.pl 14 0xFE30 0xFE6B >> segB2
-egrep "/x../x.." BIG5 | egrep -v "^%" | egrep "^<UFF" | sort | \
+grep -E "/x../x.." BIG5 | grep -E -v "^%" | grep -E "^<UFF" | sort | \
 	perl segB2.pl 15 0xFF01 0xFFE5 >> segB2
 ---------------------------------------------------------------------
 
diff --git a/iconvdata/cns11643.c b/iconvdata/cns11643.c
index 8425b449ae..5c41a4ab0a 100644
--- a/iconvdata/cns11643.c
+++ b/iconvdata/cns11643.c
@@ -38,7 +38,7 @@
 
    The table can be generated using
 
-   egrep '^0x2' CNS11643.TXT |
+   grep -E '^0x2' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -1979,7 +1979,7 @@ const uint16_t __cns11643l2_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0x3' CNS11643.TXT |
+   grep -E '^0x3' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -3606,7 +3606,7 @@ const uint32_t __cns11643l3_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0x4' CNS11643.TXT |
+   grep -E '^0x4' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -5456,7 +5456,7 @@ const uint32_t __cns11643l4_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0x5' CNS11643.TXT |
+   grep -E '^0x5' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -7635,7 +7635,7 @@ const uint32_t __cns11643l5_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0x6' CNS11643.TXT |
+   grep -E '^0x6' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -9260,7 +9260,7 @@ const uint32_t __cns11643l6_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0x7' CNS11643.TXT |
+   grep -E '^0x7' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -10923,7 +10923,7 @@ const uint32_t __cns11643l7_to_ucs4_tab[] =
 
    The table can be generated using
 
-   egrep '^0xF' CNS11643.TXT |
+   grep -E '^0xF' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -12633,8 +12633,8 @@ const uint32_t __cns11643l15_to_ucs4_tab[] =
    CJK Ideographs in the UCS plane 0: range U+3400..U+9FA5.
    The table can be created using
 
-   egrep '^0x' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x(3[4-9A-F]|[4-9])' | perl tab.pl
+   grep -E '^0x' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x(3[4-9A-F]|[4-9])' | perl tab.pl
 
    where tab.pl is
 
@@ -24796,8 +24796,8 @@ const char __cns11643_from_ucs4p0_tab[][3] =
 /* CJK Ideographs in the UCS plane 2: range U+20000..U+2A6D6.
    The table can be created using
 
-   egrep '^0x' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x2[0-9A]... ' | perl tab.pl
+   grep -E '^0x' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x2[0-9A]... ' | perl tab.pl
 
    where tab.pl is
 
@@ -39911,8 +39911,8 @@ const char __cns11643_from_ucs4p2_tab[][3] =
 /* CJK Compatibility Ideographs in the UCS plane 2: range U+2F800..U+2FA1D.
    The table can be created using
 
-   egrep '^0x' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x2F... ' | perl tab.pl
+   grep -E '^0x' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x2F... ' | perl tab.pl
 
    where tab.pl is
 
diff --git a/iconvdata/cns11643l1.c b/iconvdata/cns11643l1.c
index 839cc84f72..96bd962ecc 100644
--- a/iconvdata/cns11643l1.c
+++ b/iconvdata/cns11643l1.c
@@ -32,7 +32,7 @@
 
    The table can be generated using
 
-   egrep '^0x1' CNS11643.TXT |
+   grep -E '^0x1' CNS11643.TXT |
    awk '{print $1, $2}' | perl tab.pl
 
    where tab.pl is:
@@ -1540,8 +1540,8 @@ const char __cns11643l1_from_ucs4_tab2[][2] =
 
 /* Greek alphabet.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x03' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x03' | perl tab.pl
 
    where tab.pl is
 
@@ -1581,8 +1581,8 @@ const char __cns11643l1_from_ucs4_tab3[][2] =
 
 /* General punctuation.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x20' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x20' | perl tab.pl
 
    where tab.pl is
 
@@ -1619,8 +1619,8 @@ const char __cns11643l1_from_ucs4_tab5[][2] =
 
 /* Mathematical operators.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x22[1-6]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x22[1-6]' | perl tab.pl
 
    where tab.pl is
 
@@ -1650,8 +1650,8 @@ const char __cns11643l1_from_ucs4_tab6[][2] =
 
 /* Graphic pictures for control codes.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x24[0-2]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x24[0-2]' | perl tab.pl
 
    where tab.pl is
 
@@ -1686,8 +1686,8 @@ const char __cns11643l1_from_ucs4_tab7[][2] =
 
 /* Circled and Parenthesized numbers.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x24[67]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x24[67]' | perl tab.pl
 
    where tab.pl is
 
@@ -1718,8 +1718,8 @@ const char __cns11643l1_from_ucs4_tab8[][2] =
 
 /* Circled and Parenthesized numbers.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x2[56]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x2[56]' | perl tab.pl
 
    where tab.pl is
 
@@ -1763,8 +1763,8 @@ const char __cns11643l1_from_ucs4_tab9[][2] =
 
 /* CJK punctuation and Hangzhou-style numerals.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x30[0-2]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x30[0-2]' | perl tab.pl
 
    where tab.pl is
 
@@ -1798,8 +1798,8 @@ const char __cns11643l1_from_ucs4_tab10[][2] =
 
 /* Squared latin abbreviations.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x33' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x33' | perl tab.pl
 
    where tab.pl is
 
@@ -1827,8 +1827,8 @@ const char __cns11643l1_from_ucs4_tab11[][2] =
 
 /* CJK Ideographs.  The table can be created using
 
-   egrep '^0x1' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0x[4-9]' | perl tab.pl
+   grep -E '^0x1' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x[4-9]' | perl tab.pl
 
    where tab.pl is
 
@@ -3657,8 +3657,8 @@ const char __cns11643l1_from_ucs4_tab12[][2] =
 
 /* Glyphs for vertical variants.  The table can be created using
 
-   egrep '^0x' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0xFE' | perl tab.pl
+   grep -E '^0x' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0xFE' | perl tab.pl
 
    where tab.pl is
 
@@ -3699,8 +3699,8 @@ const char __cns11643l1_from_ucs4_tab13[][2] =
 
 /* Fullwidth ASCII variants.  The table can be created using
 
-   egrep '^0x' CNS11643.TXT |
-   awk '{ print $2, $1 }' | sort | egrep '^0xFF[0-5]' | perl tab.pl
+   grep -E '^0x' CNS11643.TXT |
+   awk '{ print $2, $1 }' | sort | grep -E '^0xFF[0-5]' | perl tab.pl
 
    where tab.pl is
 
diff --git a/iconvdata/gb2312.c b/iconvdata/gb2312.c
index 3bab2268a4..760040a799 100644
--- a/iconvdata/gb2312.c
+++ b/iconvdata/gb2312.c
@@ -20,7 +20,7 @@
 
 /* The conversion table to UCS4 has almost no holes.  It can be generated with:
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
    perl tab.pl
 
    where tab.pl is:
@@ -1918,8 +1918,8 @@ const char __gb2312_from_ucs4_tab1[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x03' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x03' | perl tab.pl
 
    where tab.pl is
 
@@ -1959,8 +1959,8 @@ const char __gb2312_from_ucs4_tab2[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x04' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x04' | perl tab.pl
 
    where tab.pl is
 
@@ -2006,8 +2006,8 @@ const char __gb2312_from_ucs4_tab3[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x20' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x20' | perl tab.pl
 
    where tab.pl is
 
@@ -2035,8 +2035,8 @@ const char __gb2312_from_ucs4_tab4[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x2[12]' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x2[12]' | perl tab.pl
 
    where tab.pl is
 
@@ -2076,8 +2076,8 @@ const char __gb2312_from_ucs4_tab5[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x24' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x24' | perl tab.pl
 
    where tab.pl is
 
@@ -2118,8 +2118,8 @@ const char __gb2312_from_ucs4_tab6[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x3[01]' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x3[01]' | perl tab.pl
 
    where tab.pl is
 
@@ -2219,8 +2219,8 @@ const char __gb2312_from_ucs4_tab7[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0x[4-9]' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0x[4-9]' | perl tab.pl
 
    where tab.pl is
 
@@ -4499,8 +4499,8 @@ const char __gb2312_from_ucs4_tab8[][2] =
 
 /* The table can be created using
 
-   egrep '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
-   awk '{ print $2, $1 }' | sort | egrep '^0xFF[0-5]' | perl tab.pl
+   grep -E '^0x' /mnt/cdrom/unix/mappings/eastasia/gb/gb2312.txt |
+   awk '{ print $2, $1 }' | sort | grep -E '^0xFF[0-5]' | perl tab.pl
 
    where tab.pl is
 
diff --git a/iconvdata/gbk.c b/iconvdata/gbk.c
index 97717181f4..53e865e74a 100644
--- a/iconvdata/gbk.c
+++ b/iconvdata/gbk.c
@@ -5543,7 +5543,7 @@ static const uint16_t __gbk_to_ucs[] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x00' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x00' | perl tab.pl
 
    where tab.pl is
 
@@ -5574,7 +5574,7 @@ static const char __gbk_from_ucs4_tab1[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x03' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x03' | perl tab.pl
 
    where tab.pl is
 
@@ -5614,7 +5614,7 @@ static const char __gbk_from_ucs4_tab2[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x04' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x04' | perl tab.pl
 
    where tab.pl is
 
@@ -5660,7 +5660,7 @@ static const char __gbk_from_ucs4_tab3[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x20' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x20' | perl tab.pl
 
    where tab.pl is
 
@@ -5690,7 +5690,7 @@ static const char __gbk_from_ucs4_tab4[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x2[12]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x2[12]' | perl tab.pl
 
    where tab.pl is
 
@@ -5738,7 +5738,7 @@ static const char __gbk_from_ucs4_tab5[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x2[4-6]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x2[4-6]' | perl tab.pl
 
    where tab.pl is
 
@@ -5829,7 +5829,7 @@ static const char __gbk_from_ucs4_tab6[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x3[0-3]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x3[0-3]' | perl tab.pl
 
    where tab.pl is
 
@@ -5943,7 +5943,7 @@ static const char __gbk_from_ucs4_tab7[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0x[4-9]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0x[4-9]' | perl tab.pl
 
    where tab.pl is
 
@@ -12935,7 +12935,7 @@ static const char __gbk_from_ucs4_tab8[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0xE[78]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0xE[78]' | perl tab.pl
 
    where tab.pl is
 
@@ -12993,7 +12993,7 @@ static const char __gbk_from_ucs4_tab9[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0xFA[0-2]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0xFA[0-2]' | perl tab.pl
 
    where tab.pl is
 
@@ -13023,7 +13023,7 @@ static const char __gbk_from_ucs4_tab10[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0xFE[3-6]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0xFE[3-6]' | perl tab.pl
 
    where tab.pl is
 
@@ -13065,7 +13065,7 @@ static const char __gbk_from_ucs4_tab11[][2] =
 
 /* The table can be created using
 
-   awk '{ print $2, $1 }' gbk.txt | sort | egrep '^0xFF[0-5]' | perl tab.pl
+   awk '{ print $2, $1 }' gbk.txt | sort | grep -E '^0xFF[0-5]' | perl tab.pl
 
    where tab.pl is
 
diff --git a/iconvdata/jis0208.c b/iconvdata/jis0208.c
index 4bfc68d66c..e2940113df 100644
--- a/iconvdata/jis0208.c
+++ b/iconvdata/jis0208.c
@@ -38,7 +38,7 @@
    It's not worth trying to use these gaps.  The table can be generated
    using
 
-   egrep '^0x' < .../eastasia/jis/jis0208.txt |
+   grep -E '^0x' < .../eastasia/jis/jis0208.txt |
    perl tab.pl
 
    with tab.pl containing:
@@ -1800,8 +1800,8 @@ const char __jisx0208_from_ucs4_lat1[JIS0208_LAT1_MAX + 1
 
 /* The following table can be generated using
 
-   egrep '^0x' < .../eastasia/jis/jis0208.txt |
-   awk '{ print $3, $2}' | egrep '^0x0[34]' | sort -u | perl tab.pl
+   grep -E '^0x' < .../eastasia/jis/jis0208.txt |
+   awk '{ print $3, $2}' | grep -E '^0x0[34]' | sort -u | perl tab.pl
 
    where tab.pl contains:
 
@@ -1868,8 +1868,8 @@ const char __jisx0208_from_ucs4_greek[0xc1][2] =
    unpredictable place and size.  Therefore we use a table which maps
    ranges to idexes in a table.  This table ca be generated with:
 
-   egrep '^0x' < .../eastasia/jis/jis0208.txt | awk '{ print $3, $2}' |
-   egrep '^0x[^01]' | sort -u | perl tab.pl
+   grep -E '^0x' < .../eastasia/jis/jis0208.txt | awk '{ print $3, $2}' |
+   grep -E '^0x[^01]' | sort -u | perl tab.pl
 
    where tab.pl is
 
@@ -2610,8 +2610,8 @@ const struct jisx0208_ucs_idx __jisx0208_from_ucs_idx[] =
    therefore indexed using UCS with leaving large gaps out.  It can
    be computed with
 
-   egrep '^0x' < .../eastasia/jis/jis0208.txt | awk '{ print $3, $2}' |
-   egrep '^0x[^01]' | sort -u | perl tag.pl
+   grep -E '^0x' < .../eastasia/jis/jis0208.txt | awk '{ print $3, $2}' |
+   grep -E '^0x[^01]' | sort -u | perl tag.pl
 
    where tab.pl is
 
diff --git a/iconvdata/jis0212.c b/iconvdata/jis0212.c
index 5799cd7b60..5ca559a76f 100644
--- a/iconvdata/jis0212.c
+++ b/iconvdata/jis0212.c
@@ -25,7 +25,7 @@
    char in a table resulting in an index to a table with the UCS.  The
    following command can be used to generate the table:
 
-   egrep '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
+   grep -E '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
      .../eastasia/jis/jis0212.txt | perl tab.pl
 
    where tab.pl is
@@ -71,7 +71,7 @@ const struct jisx0212_idx __jisx0212_to_ucs_idx[] =
 /* The table which the UCS values indexed by the table above can be
    generated using the following code:
 
-   egrep '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
+   grep -E '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
      .../eastasia/jis/jis0212.txt | perl tab.pl
 
    where tab.pl is:
@@ -876,7 +876,7 @@ const uint16_t __jisx0212_to_ucs[] =
    use again a two-step mapping table.  The index table can be computed
    using
 
-   egrep '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
+   grep -E '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
      ../eastasia/jis/jis0212.txt | awk '{ print $2, $1 }' | sort -u |
    perl tab.pl
 
@@ -1657,7 +1657,7 @@ const struct jisx0212_idx __jisx0212_from_ucs_idx[] =
 
 /* The values corresponding to the table can be computed using
 
-    egrep '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
+    grep -E '^0x[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
       .../eastasia/jis/jis0212.txt | awk '{ print $2, $1 }' |
     sort -u | perl tab.pl
 
diff --git a/iconvdata/ksc5601.c b/iconvdata/ksc5601.c
index 922ec8b0c5..533f7bca17 100644
--- a/iconvdata/ksc5601.c
+++ b/iconvdata/ksc5601.c
@@ -20,8 +20,8 @@
 #include "ksc5601.h"
 
 /*
-egrep  '# HANGUL SYLL' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
-egrep -v '^0x[4-9AD-F]' | egrep -v '^0x..([4-9].|A0)' | \
+grep -E '# HANGUL SYLL' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E -v '^0x[4-9AD-F]' | grep -E -v '^0x..([4-9].|A0)' | \
 perl tab21.pl > ksc_hangul1.tb
 
 ----------
@@ -350,7 +350,7 @@ const uint16_t __ksc5601_hangul_to_ucs[KSC5601_HANGUL]=
     and UCS-4. It's used to convert symbols in  EUC-KR, ISO-2022-KR,
     Johab, UHC to UCS-4.
 
-egrep '^0xA[1-C]' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E '^0xA[1-C]' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
 grep -v '# HANGUL SYLLABLE' | perl tab11.pl  > ksc_sym1.tb
 
    $n=0;
@@ -624,7 +624,7 @@ const uint16_t __ksc5601_sym_to_ucs[] =
 
  Mapping table from UCS4 to symbols defined in KS C 5601-1987.
 
-egrep '^0xA[1-C]' /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E '^0xA[1-C]' /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
 grep -v '# HANGUL SYLLABLE' | awk '{print $2, $1}' | sort -u |
 perl tab12.pl > ksc_sym2.tb
 
@@ -981,7 +981,7 @@ const struct map __ksc5601_sym_from_ucs[KSC5601_SYMBOL] =
 };
 
 /*
-egrep  '^0x.*# <CJK>' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E '^0x.*# <CJK>' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
 perl tab21.pl > ksc_hanja1.tb
 
 
@@ -1613,7 +1613,7 @@ const uint16_t __ksc5601_hanja_to_ucs[KSC5601_HANJA]=
 };
 
 /*
-egrep  '^0x.*# <CJK>' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E '^0x.*# <CJK>' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
 awk '{print $2,$1}' | sort -u | perl tab12.pl > ksc_hanja2.tb
 
    $n=0;
diff --git a/iconvdata/sjis.c b/iconvdata/sjis.c
index 5aea18b314..e4f143813a 100644
--- a/iconvdata/sjis.c
+++ b/iconvdata/sjis.c
@@ -26,7 +26,7 @@
    from the Unicode CD (also available on their FTP server) using
    the command
 
-	egrep '^0x8[01234][[:xdigit:]][[:xdigit:]]' \
+	grep -E '^0x8[01234][[:xdigit:]][[:xdigit:]]' \
 	  /mnt/cdrom/unix/mappings/eastasia/jis/shiftjis.txt | perl ~/sjis.pl
 
    where sjis.pl contains:
@@ -185,7 +185,7 @@ static const uint16_t cjk_block1[703] =
    from the Unicode CD (also available on their FTP server) using
    the command
 
-	egrep '^0x8[89][[:xdigit:]][[:xdigit:]]' \
+	grep -E '^0x8[89][[:xdigit:]][[:xdigit:]]' \
 	  /mnt/cdrom/unix/mappings/eastasia/jis/shiftjis.txt | perl ~/sjis.pl
 
    where sjis.pl contains:
@@ -235,7 +235,7 @@ static const uint16_t cjk_block2[94] =
    from the Unicode CD (also available on their FTP server) using
    the command
 
-	egrep '^0x(8[9a-fA-F]|9[[:xdigit:]])[[:xdigit:]][[:xdigit:]]' \
+	grep -E '^0x(8[9a-fA-F]|9[[:xdigit:]])[[:xdigit:]][[:xdigit:]]' \
 	  /mnt/cdrom/unix/mappings/eastasia/jis/shiftjis.txt | perl ~/sjis.pl
 
    where sjis.pl contains:
@@ -1333,7 +1333,7 @@ static const uint16_t cjk_block3[4413] =
    from the Unicode CD (also available on their FTP server) using
    the command
 
-	egrep '^0x[eE][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
+	grep -E '^0x[eE][[:xdigit:]][[:xdigit:]][[:xdigit:]]' \
 	  /mnt/cdrom/unix/mappings/eastasia/jis/shiftjis.txt | perl ~/sjis.pl
 
    where sjis.pl contains:
@@ -1856,7 +1856,7 @@ static const uint16_t cjk_block4[2021] =
 /* The following table can be generated using
 
    awk '/^0x/ { print $2, $1; }' < .../eastasia/jis/shiftjis.txt |
-   egrep "^0x00[[:xdigit:]][[:xdigit:]]" |
+   grep -E "^0x00[[:xdigit:]][[:xdigit:]]" |
    sort -u | perl tab.pl
 
    where tab.pl is
@@ -1938,7 +1938,7 @@ static const char from_ucs4_lat1[0xf8][2] =
 /* The following table can be generated using
 
    awk '/^0x/ { print $2, $1; }' < .../eastasia/jis/shiftjis.txt |
-   egrep "^0x0[34][[:xdigit:]][[:xdigit:]]" |
+   grep -E "^0x0[34][[:xdigit:]][[:xdigit:]]" |
    sort -u | perl tab.pl
 
    where tab.pl is
@@ -2007,7 +2007,7 @@ static const char from_ucs4_greek[193][2] =
    The following table can be generated using
 
    awk '/^0x/ { print $2, $1; }' < ...eastasia/jis/shiftjis.txt |
-   egrep "^0x[2-9][[:xdigit:]][[:xdigit:]][[:xdigit:]]" |
+   grep -E "^0x[2-9][[:xdigit:]][[:xdigit:]][[:xdigit:]]" |
    sort -u | perl tab.pl
 
    where tab.pl is
diff --git a/iconvdata/uhc.c b/iconvdata/uhc.c
index 3277695735..9b222d358d 100644
--- a/iconvdata/uhc.c
+++ b/iconvdata/uhc.c
@@ -22,7 +22,7 @@
 
 
 /*
-egrep \
+grep -E \
 '^0x([89][0-9A-F]..|A0..|[AB][0-9A-F][4-9].|[AB][0-9A-F]A0|C[0-6][4-9].|C[0-6]A0)' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | perl tab.pl
 
 ------tab.pl
@@ -1150,7 +1150,7 @@ static const uint32_t uhc_extra_to_ucs[8822]=
 };
 
 /*
-egrep  '# HANGUL SYLL' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
+grep -E '# HANGUL SYLL' < /cdrom/unix/mappings/eastasia/ksc/ksc5601.txt | \
  awk '{print $2, $1}' | sort -u | perl tab.pl
 
 -----tab.pl