find ./ -type f -exec rm {} \; 解释find的-exec选项是以;作为结尾标志的,转移符是防止shell来解释;的,{}代替了find的查找结果,一行一行进行的。 xargs是一个命令,xargs可以从标准输入读取条目(可以理解为字符串),通过空白符进行分割(空白符:空格,\t, newline) | xargs其实也相当于从标准输入过来
一、官方解读 The xargs utility(功效,此处翻译为执行程序) reads space, tab, newline and end-of-file delimited strings from the standard input and executes utility with the strings as arguments. Any arguments specified on the command line are given to utility upon each invocation, followed by som...
True; print the full file name on the standard output, followed by a null character (instead of the newline character that -print uses). This allows file names that con‐ tain newlines or other types of white space to be correctly interpreted by programs that process the find output. This...
-s size 设置每次构造Command行的长度总大小,包括 command +init-param +传递参数,Size 参数必须是正整数 -n 控制每次输入的参数个数,参数以空白字符或<newline>换行符分割,-L 和 -n 标志是互相排斥的;最后指定的标志生效。 -L num 参数控制每次输入的行数 ,-l和-L功能一样,不建议使用。 -t 参数,打开...
-n控制每次输入的参数个数,参数以空白字符或<newline>换行符分割,-L 和 -n 标志是互相排斥的;最后指定的标志生效。 -L num参数控制每次输入的行数,-l和-L功能一样,不建议使用。 -t 参数,打开调试功能,显示每次所组的命令,在调试中非常有用,可以看出xargs的执行原理 ...
xargs 将限制命令行长度,以使调用命令行时合并的参数和环境列表不能超过 {ARG_MAX}−2048 个字节。在该限制范围以内,如果 –n 和–s 选项均未指定,则缺省命令行长度至少为 {LINE_MAX}。选项支持以下选项:–0 输入项以空字符而非空格或 NEWLINE 结束,引号和反斜杠不会特殊对待,即每个字符都按字面意思理解...
Use fork and exec to invoke the command on each line of input. Use wait in the parent to wait for the child to complete the command. To read individual lines of input, read a character at a time until a newline ('\n') appears. ...
The xargs utility reads space, tab, newline and end-of-file delimited strings from the standard input and executes utility with the strings as arguments. Any arguments specified on the command line are given to utility upon each invoca- ...
character other than backslash or <newline> can be used instead of a slash to delimit the BRE and the replacement. Within the BRE and the replacement, the BRE delimiter itself can be used as a literal character if it is preceded by a backslash. ...
not count towards the number of lines being added to the template.xargsconsiders a line to end at the first newline character, unless the last character of the line is a blank or a tab, in which case, the current line is considered to extend to the end of the next non-empty line. ...