commit 9fdef90feb79e900278e759866fc1c2b6235791a
parent 787d99d896e06b2383da763df695b9e9496bdff5
Author: Quentin Rameau <quinq@quinq.eu.org>
Date: Wed, 18 Mar 2015 19:26:42 +0100
ls: add -f and -S options
Diffstat:
| M | README | | | 2 | +- |
| M | ls.1 | | | 16 | ++++++++++++++-- |
| M | ls.c | | | 26 | +++++++++++++++++++++----- |
3 files changed, 36 insertions(+), 8 deletions(-)
diff --git a/README b/README
@@ -42,7 +42,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
=*| ln yes none
=*| logger yes none
=*| logname yes none
-# ls no (-C), -S, -f, (-m), (-s), (-x)
+#* ls no (-C), (-m), (-s), (-x)
=*| md5sum non-posix none
=*| mkdir yes none
=*| mkfifo yes none
diff --git a/ls.1 b/ls.1
@@ -1,4 +1,4 @@
-.Dd February 21, 2015
+.Dd March 18, 2015
.Dt LS 1
.Os sbase
.Sh NAME
@@ -6,7 +6,7 @@
.Nd list directory contents
.Sh SYNOPSIS
.Nm
-.Op Fl 1AacdFHhiLlnqrtUu
+.Op Fl 1AacdFfHhiLlnqrStUu
.Op Ar file ...
.Sh DESCRIPTION
.Nm
@@ -25,6 +25,16 @@ modification time for sorting or printing.
List directories themselves, not their contents.
.It Fl F
Append a file type indicator to all special files.
+.It Fl f
+Like
+.Fl U
+but turns on
+.Fl a
+and disables
+.Fl r ,
+.Fl S
+and
+.Fl t .
.It Fl H
List information about the targets of symbolic links specified on the command
line instead of the links themselves.
@@ -52,6 +62,8 @@ List directory content recursively. The
flag is set implicitly.
.It Fl r
Reverse the sort order.
+.It Fl S
+Sort files by size (in decreasing order).
.It Fl t
Sort files by last file status/modification time instead of by name.
.It Fl U
diff --git a/ls.c b/ls.c
@@ -29,6 +29,7 @@ static int aflag = 0;
static int cflag = 0;
static int dflag = 0;
static int Fflag = 0;
+static int fflag = 0;
static int Hflag = 0;
static int hflag = 0;
static int iflag = 0;
@@ -38,6 +39,7 @@ static int nflag = 0;
static int pflag = 0;
static int qflag = 0;
static int Rflag = 0;
+static int Sflag = 0;
static int rflag = 0;
static int tflag = 0;
static int Uflag = 0;
@@ -176,12 +178,15 @@ output(const struct entry *ent)
static int
entcmp(const void *va, const void *vb)
{
+ int cmp = 0;
const struct entry *a = va, *b = vb;
- if (tflag)
- return b->t - a->t;
- else
- return strcmp(a->name, b->name);
+ if (Sflag)
+ cmp = b->size - a->size;
+ else if (tflag)
+ cmp = b->t - a->t;
+
+ return cmp ? cmp : strcmp(a->name, b->name);
}
static void
@@ -289,6 +294,11 @@ main(int argc, char *argv[])
case 'd':
dflag = 1;
break;
+ case 'f':
+ aflag = 1;
+ fflag = 1;
+ Uflag = 1;
+ break;
case 'F':
Fflag = 1;
break;
@@ -321,9 +331,15 @@ main(int argc, char *argv[])
Rflag = 1;
break;
case 'r':
- rflag = 1;
+ if (!fflag)
+ rflag = 1;
+ break;
+ case 'S':
+ Sflag = 1;
+ tflag = 0;
break;
case 't':
+ Sflag = 0;
tflag = 1;
break;
case 'U':
