[PATCH v2 023/142] t1100-commit-tree-options.sh: use the $( ... ) construct for command substitution

From: Elia Pinto <gitter.spiros@gmail.com>
Date: Mar 25, 2014, 17:22 UTC
Message-ID: <1395768283-31135-24-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>
---
 t/t1100-commit-tree-options.sh |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/t1100-commit-tree-options.sh b/t/t1100-commit-tree-options.sh
index f8457f9..b7e9b4fc 100755
--- a/t/t1100-commit-tree-options.sh
+++ b/t/t1100-commit-tree-options.sh
@@ -35,11 +35,11 @@ test_expect_success \
      GIT_COMMITTER_NAME="Committer Name" \
      GIT_COMMITTER_EMAIL="committer@email" \
      GIT_COMMITTER_DATE="2005-05-26 23:30" \
-     TZ=GMT git commit-tree `cat treeid` >commitid 2>/dev/null'
+     TZ=GMT git commit-tree $(cat treeid) >commitid 2>/dev/null'
 
 test_expect_success \
     'read commit' \
-    'git cat-file commit `cat commitid` >commit'
+    'git cat-file commit $(cat commitid) >commit'
 
 test_expect_success \
     'compare commit' \

-- 
1.7.10.4