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authorElliott Hughes <enh@google.com>2019-04-29 08:54:45 -0700
committerRob Landley <rob@landley.net>2019-04-30 17:05:31 -0500
commite425ab040b5315d94d59aa4448dc578daf894979 (patch)
treed9ff805c3a2755f59cd5d2dfea0362f134eb2865 /toys/posix
parent07a716b167ef6b21f82c86b026dc0f8fdd385c6f (diff)
downloadtoybox-e425ab040b5315d94d59aa4448dc578daf894979.tar.gz
echo: add -E.
POSIX finally gave us a way to use echo in a portable way despite differences of opinion about whether to default interpretation of escape sequences to on or off: -e enables and -E disables (as already implemented by busybox and coreutils). http://austingroupbugs.net/view.php?id=1222
Diffstat (limited to 'toys/posix')
-rw-r--r--toys/posix/echo.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/toys/posix/echo.c b/toys/posix/echo.c
index 63eb1981..11a68a9b 100644
--- a/toys/posix/echo.c
+++ b/toys/posix/echo.c
@@ -9,13 +9,13 @@
* We also honor -- to _stop_ option parsing (bash doesn't, we go with
* consistency over compatibility here).
-USE_ECHO(NEWTOY(echo, "^?en", TOYFLAG_BIN))
+USE_ECHO(NEWTOY(echo, "^?Een", TOYFLAG_BIN))
config ECHO
bool "echo"
default y
help
- usage: echo [-ne] [args...]
+ usage: echo [-neE] [args...]
Write each argument to stdout, with one space between each, followed
by a newline.
@@ -33,6 +33,7 @@ config ECHO
\t Horizontal tab
\v Vertical tab
\xHH Hexadecimal values (1 to 2 digits)
+ -E Print escape sequences literally (default)
*/
#define FOR_echo