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Add option -l, to make output line buffered.

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PR:		bin/78692
Submitted by:	Eugene Grosbein
MFC after:	2 weeks
This commit is contained in:
glebius 2005-05-10 13:40:50 +00:00
parent a521f4fbfd
commit 7db34cfe43
2 changed files with 11 additions and 5 deletions
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10
usr.bin/sed/main.c
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@ -128,7 +128,7 @@ main(int argc, char *argv[])
fflag = 0;
inplace = NULL;
while ((c = getopt(argc, argv, "Eae:f:i:n")) != -1)
while ((c = getopt(argc, argv, "Eae:f:i:ln")) != -1)
switch (c) {
case 'E':
rflags = REG_EXTENDED;
@ -151,6 +151,10 @@ main(int argc, char *argv[])
case 'i':
inplace = optarg;
break;
case 'l':
if(setlinebuf(stdout) != 0)
warnx("setlinebuf() failed");
break;
case 'n':
nflag = 1;
break;
@ -186,8 +190,8 @@ static void
usage(void)
{
(void)fprintf(stderr, "%s\n%s\n",
"usage: sed script [-Ean] [-i extension] [file ...]",
" sed [-an] [-i extension] [-e script] ... [-f script_file] ... [file ...]");
"usage: sed script [-Ealn] [-i extension] [file ...]",
" sed [-Ealn] [-i extension] [-e script] ... [-f script_file] ... [file ...]");
exit(1);
}

6
usr.bin/sed/sed.1
View File

@ -39,11 +39,11 @@
.Nd stream editor
.Sh SYNOPSIS
.Nm
.Op Fl Ean
.Op Fl Ealn
.Ar command
.Op Ar
.Nm
.Op Fl Ean
.Op Fl Ealn
.Op Fl e Ar command
.Op Fl f Ar command_file
.Op Fl i Ar extension
@ -105,6 +105,8 @@ It is not recommended to give a zero-length
.Ar extension
when in-place editing files, as you risk corruption or partial content
in situations where disk space is exhausted, etc.
.It Fl l
Make output line buffered.
.It Fl n
By default, each line of input is echoed to the standard output after
all of the commands have been applied to it.