shell语句修改txt文件或者sh文件
基本思路&＃xff0c;使用正则表达式&＃xff0c;找到目标&＃xff0c;替换目标&＃xff0c;保存文件
shell sed regular expression
regular expression
方案1&＃xff1a;
runScSparkFilename&＃61;"runScSpark.sh"sed -i "s/$search/$replace/" $filename
方案2&＃xff1a;
$ cat /etc/syslog.conf | sed -n &＃39;/^[[:alpha:]]/p&＃39;
authpriv.* /var/log/secure
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