[PATCH 06/14] git-pull.sh: use the $( ... ) construct for command substitution

From: Elia Pinto <gitter.spiros@gmail.com>
Date: Apr 23, 2014, 13:43 UTC
Message-ID: <1398260646-2660-6-git-send-email-gitter.spiros@gmail.com>
In-Reply-To: <1398260646-2660-1-git-send-email-gitter.spiros@gmail.com>

The Git CodingGuidelines prefer the $(...) construct for command substitution instead of using the backquotes `...`.

The backquoted form is the traditional 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.

The patch was generated by:

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

and then carefully proof-read.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 git-pull.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/git-pull.sh b/git-pull.sh
index 6cd8ebc..cfc589d 100755
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -108,7 +108,7 @@ do
 	-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
 		case "$#,$1" in
 		*,*=*)
-			strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
+			strategy=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
 		1,*)
 			usage ;;
 		*)

-- 
1.7.10.4