On Sat, Nov 22, 2014 at 02:00:39PM -0900, Ken Irving wrote:
> I'd also be interested in having stat(1) -c or --printf formats more
> suited to simple parsing in scripts. %N is effectively a 'pretty print'
> form, fairly complicated to parse, and the same might be said for %F
> since it uses multiple words for some types. If new format patterns
> might be considered, I concur with the above suggestion for one that
> produces just the unquoted link value (as readlink(1) would provide);
> and a terse type-showing pattern, e.g., maybe using one-letter values
> like find(1) -type uses.
I've attached a draft patch adding format pattern %p to stat(1) to output
one-letter codes for file type, as used by find(1) -type. The choice of
%p is arbitrary, but it seems to be available, and could perhaps suggest
'tyPe' as a mnemonic.
ken@kimball:~/coreutils-hacks/coreutils/
$ mkfifo fifo
$ src/stat --printf "%12n%24F\t%p\n" configure src INSTALL fifo
/dev/{ram0,tty,log}
configure regular file f
src directory d
INSTALL symbolic link l
fifo fifo p
/dev/ram0 block special file b
/dev/tty character special file c
/dev/log socket s
Ken
>From c38fabab3117ba8bac792012fd99cf368e076cd7 Mon Sep 17 00:00:00 2001
From: Ken Irving <[email protected]>
Date: Sun, 23 Nov 2014 21:58:05 -0900
Subject: [PATCH] stat: added %p format for one-letter types
---
doc/coreutils.texi | 1 +
src/stat.c | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 9c731b5..64c9ee8 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -11928,6 +11928,7 @@ The valid @var{format} directives for files with
@option{--format} and
@item %n - File name
@item %N - Quoted file name with dereference if symbolic link
@item %o - Optimal I/O transfer size hint
+@item %p - File type as one-letter code (see find(1) -type)
@item %s - Total size, in bytes
@item %t - Major device type in hex (see below)
@item %T - Minor device type in hex (see below)
diff --git a/src/stat.c b/src/stat.c
index 987f579..e4f796a 100644
--- a/src/stat.c
+++ b/src/stat.c
@@ -1024,6 +1024,24 @@ print_stat (char *pformat, size_t prefix_len, unsigned
int m,
case 'F':
out_string (pformat, prefix_len, file_type (statbuf));
break;
+ case 'p':
+ if (S_ISREG (statbuf->st_mode))
+ out_string (pformat, prefix_len,"f");
+ else if (S_ISDIR (statbuf->st_mode))
+ out_string (pformat, prefix_len,"d");
+ else if (S_ISLNK (statbuf->st_mode))
+ out_string (pformat, prefix_len,"l");
+ else if (S_ISFIFO (statbuf->st_mode))
+ out_string (pformat, prefix_len,"p");
+ else if (S_ISCHR (statbuf->st_mode))
+ out_string (pformat, prefix_len,"c");
+ else if (S_ISBLK (statbuf->st_mode))
+ out_string (pformat, prefix_len,"b");
+ else if (S_ISSOCK (statbuf->st_mode))
+ out_string (pformat, prefix_len,"s");
+ else
+ out_string (pformat, prefix_len,"?");
+ break;
case 'h':
out_uint (pformat, prefix_len, statbuf->st_nlink);
break;
@@ -1458,6 +1476,7 @@ The valid format sequences for files (without
--file-system):\n\
%D device number in hex\n\
%f raw mode in hex\n\
%F file type\n\
+ %p one-letter file type\n\
%g group ID of owner\n\
%G group name of owner\n\
"), stdout);
--
1.9.1
