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Diffstat (limited to 'bin/d2u.sh')
-rw-r--r-- | bin/d2u.sh | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/bin/d2u.sh b/bin/d2u.sh new file mode 100644 index 00000000..22c8e16b --- /dev/null +++ b/bin/d2u.sh @@ -0,0 +1,25 @@ +# Convert DOS line endings to UNIX ones + +# Check arguments +if [ "$#" -eq 0 ] ; then + printf >&2 'd2u: Need a filename\n' + exit 2 +fi + +# Put a carriage return into a variable for convenience +r=$(printf '\r') + +# Iterate over arguments and apply the same ed(1) script to each of them +for fn ; do + + # Note the heredoc WORD is intentionally unquoted because we want to expand + # $r within it to get a literal carriage return; the escape characters + # prescribed for ed(1) by POSIX are very limited + ed -s -- "$fn" <<EOF || ex=1 +g/$r\$/ s/$r\$// +w +EOF +done + +# If any of the ed(1) commands failed, we should exit with 1 +exit "${ex:-0}" |