[英]Bash: How to run command expecting quotes using a variable?
I have a git command that I would like to run in my script: 我有一个要在脚本中运行的git命令:
git filter-branch -f --env-filter "STUFF HERE IN QUOTES"
The thing is, in my script I am dynamically creating the string that is represented by STUFF HERE IN QUOTES
: 问题是,在我的脚本中,我正在动态创建由STUFF HERE IN QUOTES
表示的字符串:
ENVFILTER=""
while read commit; do
IFS="|" read date hash message <<< "$commit"
DATE_NO_SPACE="$(echo "${date}" | tr -d '[[:space:]]')"
COMMIT_ENV=$(cat <<-END
if [ \$GIT_COMMIT = $hash ]
then
export GIT_AUTHOR_DATE="$DATE_NO_SPACE"
export GIT_COMMITTER_DATE="$DATE_NO_SPACE"
fi
END
)
ENVFILTER="$ENVFILTER$COMMIT_ENV"
done < $tmpfile
git filter-branch -f --env-filter \'"$ENVFILTER"\' // <---------- does not work
Basically I start with an empty string ENVFILTER
and I concat it with other strings to form a bunch of if statements. 基本上,我从一个空字符串ENVFILTER
开始,并与其他字符串合并以形成一堆if语句。 I'm having trouble with the last step, which is running the actual command. 我在执行实际命令的最后一步遇到了麻烦。 I don't know how to run it with the expected quotes + the interpolated value. 我不知道如何使用期望的报价+插值来运行它。
=== UPDATE === ===更新===
After looking at @chepner's answer and using "$ENVFILTER"
, I can now successfully run the command. 在查看@chepner的答案并使用"$ENVFILTER"
,我现在可以成功运行该命令。 So is answer is correct. 所以答案是正确的。
However, there is an error about my if
statements (not related to the quotes): 但是,关于我的if
语句(与引号无关)存在错误:
Rewrite eeb8860c13179c931a513a9ada76dc109324d790 (1/17)/opt/boxen/homebrew/Cellar/git/2.6.2/libexec/git-core/git-filter-branch: eval: line 313: syntax error near unexpected token `if'
/opt/boxen/homebrew/Cellar/git/2.6.2/libexec/git-core/git-filter-branch: eval: line 313: ` fi if [ $GIT_COMMIT = 08a2d85f9412c67435929d80ccc5b914f3ad8547 ]'
env filter failed: if [ $GIT_COMMIT = 59d13c174c34b6540f61585ef507abcef29ab22e ]
then
export GIT_AUTHOR_DATE="2016-10-02T21:16:37-04:00"
export GIT_COMMITTER_DATE="2016-10-02T21:16:37-04:00"
fi if [ $GIT_COMMIT = 08a2d85f9412c67435929d80ccc5b914f3ad8547 ]
then
export GIT_AUTHOR_DATE="2016-08-31T17:54:28-04:00"
export GIT_COMMITTER_DATE="2016-08-31T17:54:28-04:00"
fi if [ $GIT_COMMIT = d7801396f5fb1092beec3aa484361cd50ab35e9e ]
then
export GIT_AUTHOR_DATE="2016-08-31T17:53:07-04:00"
export GIT_COMMITTER_DATE="2016-08-31T17:53:07-04:00"
fi if [ $GIT_COMMIT = 7930e9be149a57229c9fc26ccffe1c6453317d70 ]
then
export GIT_AUTHOR_DATE="2016-08-31T17:48:03-04:00"
export GIT_COMMITTER_DATE="2016-08-31T17:48:03-04:00"
fi if [ $GIT_COMMIT = f0849b2de99ac37790eaf6e40c8980988e865c7c ]
then
export GIT_AUTHOR_DATE="2016-08-31T17:46:33-04:00"
export GIT_COMMITTER_DATE="2016-08-31T17:46:33-04:00"
fi
[
Is there something wrong with it? 这有什么问题吗? I don't get it 我不明白
Assuming that ENVFILTER
contains the correct code, this is all you need: 假设ENVFILTER
包含正确的代码,这就是您所需要的:
git filter-branch -f --env-filter "$ENVFILTER"
Any special characters in the value of ENVFILTER
are passed as-is to git
as long as the expansion is quoted. 只要引用了扩展名, ENVFILTER
值中的任何特殊字符都ENVFILTER
传递给git
。
That said, I would clean up the generator a little: 也就是说,我将清理一下发电机:
envfilter=
while IFS="|" read -r date hash message; do
envfilter+="if [ \$GIT_COMMIT = \"$hash\" ]; then echo \"here\"; fi;"
done < "$tmpfile"
git filter-branch -f --env-filter "$envfilter"
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