[PATCH 04/10] t9105-git-svn-commit-diff.sh: use the $( ... ) construct for command substitution

From: Elia Pinto <gitter.spiros@gmail.com>
Date: Jan 12, 2016, 10:45 UTC
Message-ID: <1452595518-38149-5-git-send-email-gitter.spiros@gmail.com>
In-Reply-To: <1452595518-38149-1-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
	perl -i -pe 'BEGIN{undef $/;} s/`(.+?)`/\$(\1)/smg'  "${_f}"
done

and then carefully proof-read.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
---
 t/t9105-git-svn-commit-diff.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/t9105-git-svn-commit-diff.sh b/t/t9105-git-svn-commit-diff.sh
index 5d0afea..6ed5f74 100755
--- a/t/t9105-git-svn-commit-diff.sh
+++ b/t/t9105-git-svn-commit-diff.sh
@@ -18,8 +18,8 @@ test_expect_success 'initialize repo' '
 	git commit -a -m "another"
 	'
 
-head=`git rev-parse --verify HEAD^0`
-prev=`git rev-parse --verify HEAD^1`
+head=$(git rev-parse --verify HEAD^0)
+prev=$(git rev-parse --verify HEAD^1)
 
 # the internals of the commit-diff command are the same as the regular
 # commit, so only a basic test of functionality is needed since we've

-- 
2.5.0