[PATCH v2 007/142] git-web--browse.sh: use the $( ... ) construct for command substitution

From: Elia Pinto <gitter.spiros@gmail.com>
Date: Mar 25, 2014, 17:22 UTC
Message-ID: <1395768283-31135-8-git-send-email-gitter.spiros@gmail.com>
In-Reply-To: <1395768283-31135-1-git-send-email-gitter.spiros@gmail.com>

The Git CodingGuidelines prefer the $( ... ) construct for command substitution instead of using the back-quotes, or grave accents (`..`).

The backquoted form is the historical method for command substitution, and is supported by POSIX. However, all but the simplest uses become complicated quickly. In particular, embedded command substitutions and/or the use of double quotes require careful escaping with the backslash character. Because of this the POSIX shell adopted the $(…) feature from the Korn shell.

The patch was generated by the simple script

for _f in $(find . -name "*.sh")
do
  sed -i 's@`\(.*\)`@$(\1)@g' ${_f}
done

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 git-web--browse.sh |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/git-web--browse.sh b/git-web--browse.sh
index ebdfba6..ae15253 100755
--- a/git-web--browse.sh
+++ b/git-web--browse.sh
@@ -59,7 +59,7 @@ do
 	-b|--browser*|-t|--tool*)
 		case "$#,$1" in
 		*,*=*)
-			browser=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+			browser=$(expr "z$1" : 'z-[^=]*=\(.*\)')
 			;;
 		1,*)
 			usage ;;
@@ -71,7 +71,7 @@ do
 	-c|--config*)
 		case "$#,$1" in
 		*,*=*)
-			conf=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+			conf=$(expr "z$1" : 'z-[^=]*=\(.*\)')
 			;;
 		1,*)
 			usage ;;
@@ -100,7 +100,7 @@ then
 	for opt in "$conf" "web.browser"
 	do
 		test -z "$opt" && continue
-		browser="`git config $opt`"
+		browser="$(git config $opt)"
 		test -z "$browser" || break
 	done
 	if test -n "$browser" && ! valid_tool "$browser"; then

-- 
1.7.10.4