实测过第一种写法,可正常删除 sed 's/.$//' awk '{sub(/.$/,"")}1' awk '{printf $0"\b \n"}' ufile ref: https://blog.csdn.net/u010022051/article/details/51916279/

一个简单的操作,记录下: NSString *strUrl = [urlString stringByReplacingOccurrencesOfString:@" " withString:@""]; 去掉空格 NSString *strUrl = [urlString stringByReplacingOccurrencesOfString:@" " withString:@"/"];替换字符 仅做记录!

console.log(("0,1,2,3,4,5,".slice(0,-1)))

StringBuffer stringBuffer=new StringBuffer (); stringBuffer.append("aaa,"); stringBuffer.deleteCharAt(stringBuffer.length() - 1);

$str="中国.美国.俄罗斯.德国."$str=substr($str,0,-1); 输出结果为:中国.美国.俄罗斯.德国

[root@localhost wyb]# cat file abc def abc 789de f567 [root@localhost wyb]# cat fffile.sh #!/bin/bash cat file| while read line do ${#line}` do a=`echo $line|cut -c $i` echo -ne "$a" sleep 0.1 done echo " " done [root@localhost wyb]# b

原字符串1,2,3,4,5,6, 去掉最后一个字符",",最终结果为1,2,3,4,5,6 代码如下: $str = "1,2,3,4,5,6,"; $newstr = substr($str,0,strlen($str)-1); echo $newstr; //echo 1,2,3,4,5,6 系统自带的函数即可实现这样的效果,两种方法: substr($str, 0, -1) //函数2 rtrim($str, ",")

转自:http://www.jb51.net/article/26604.htm 今天项目中用到,去掉字符串中的最后一个字符 原字符串1,2,3,4,5,6, 去掉最后一个字符",",最终结果为1,2,3,4,5,6 代码如下: 复制代码代码如下: $str = "1,2,3,4,5,6,"; $newstr = substr($str,0,strlen($str)-1); echo $newstr;  解读: 采用php的substr()方法, 语法: strin

原字符串1,2,3,4,5,6, 去掉最后一个字符",",最终结果为1,2,3,4,5,6 结合运用substr和strlen两个函数实现. 代码: $str = "1,2,3,4,5,6,"; $newstr = substr($str,0,strlen($str)-1); echo $newstr;

删除最后一个字符 如:1.1.1,  在file文件中: sed '$s/.$//' file 或者: head -c-2  去掉最后一个字符 head -c-3  去掉最后二个字符 head -c-4  去掉最后三个字符