使用-s选项,在数字前面加上+ [root@localhost ~]# cat /etc/passwd > file.txt[root@localhost ~]# ll -h file.txt-rw-r--r--. 1 root root 1009 Nov 4 18:47 file.txt [root@localhost ~]# truncate -s +200k file.txt[root@localhost ~]# ll -h file.txt-rw-r--r--. 1 root root ...
how to empty or truncate a file in linuxQuite often it is possible to end up with large files, especially large log files on your system. Sometimes, you want to start over by emptying the file especially if you are trying to minimize disk space. This is especially true about log files,...
Filename : /usr/bin/truncate coreutils-8.22-24.el7.x86_64 : A set of basic GNU tools commonly used in shell scripts Repo : @anaconda Matched from: Filename : /usr/bin/truncate 如何在Linux中使用 Truncate 命令如何在Linux中使用 Truncate 命令 可以看到truncate由coreutils安装包提供,下面安装coreutil...
Loading mirror speeds from cached hostfile * base: mirrors.huaweicloud.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com coreutils-8.22-24.el7.x86_64 : A set of basic GNU tools commonly used in shell scripts Repo : base Matched from: Filename : /usr/bin/truncate coreutils-...
[ -w"$file"] || {echo"文件不可写";exit1; }truncate-s 0"$file"||exit1 AI代码助手复制代码 十、总结 truncate命令作为Linux系统管理员的利器,在以下场景表现尤为突出: - 需要快速创建大容量测试文件时 - 日志文件管理维护过程中 - 磁盘空间预分配场景 - 开发测试环境搭建时 ...
updates: mirrors.aliyun.comcoreutils-8.22-24.el7.x86_64 : Asetofbasic GNU tools commonly usedinshell scriptsRepo : baseMatchedfrom:Filename : /usr/bin/truncatecoreutils-8.22-24.el7.x86_64 : Asetofbasic GNU tools commonly usedinshell scriptsRepo : @anacondaMatchedfrom:Filename : /usr/bin/...
coreutils-8.22-24.el7.x86_64:AsetofbasicGNUtools commonly usedinshell scriptsRepo:@anaconda Matched from:Filename:/usr/bin/truncate 可以看到truncate由coreutils安装包提供,下面安装coreutils安装包: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
final long truncateLength=file.computeFileSize(false,false)+truncatedBlock.getNumBytes();//如果当前的截断后的长度等于目标截断长度,则说明此文件已经被截断成功,返回截断结果if(newLength==truncateLength){returnnew TruncateResult(false,fsd.getAuditFileInfo(iip));}}}... ...
truncate -s offsetafile 则文件起始位置到offseta之间的数据被置为0,offset开始是进程A写入的内容。 https://superuser.com/questions/881777/what-happens-when-i-truncate-a-file-that-is-in-use https://stackoverflow.com/questions/980283/truncating-a-file-while-its-being-used-linux...
1.chmod 修改文件权限 所需头文件: #include<sys/stat.h> 函数原型: int chmod(const char *filename,int mode) 参数: filename为文件名,mode为文件权限,八进制数。 返回值:成功返回0,失败返回-1,同时errno会被设置为...