WebNov 4, 2010 · I highly recommend moving away from csh towards something like bash or zsh. stdio manipulation is not possible in csh. Have a read of "csh programming considered harmful". An elegant treatise on this topic. Sorry it's not a direct answer but you'll find that you'll keep banging your head against the constraints of csh the longer you stick with it. WebJul 6, 2016 · If C shell (in particular) complains about that syntax (I don't honestly recall, and I don't see it in the surprisingly incomplete "reference manual"), then do it by the old Swiss army knife technique, that is, 2>/dev/null. That's what /dev/null is there for: it's an entry point into the memory device driver that merely discards the data ...
shell将标准错误输出重定向到 其他地方 - vijayfly - 博客园
WebI'm not sure if you are trying to hide STDERR or redirect it to STDOUT. To redirect STDOUT to a file: pkg_add emacs-23.4,2.tbz > stdout.log ... (/bin/csh is the default for root on … WebJul 11, 2024 · 常用的操作. command > filename # 重定向到某个文件, 如果文件已经存在则删除该文件, # 文件不存在会新建, 因此命令成功与否原文件内容都会丢失 command >> filename # 同 > 相似, 只不过是追加到文件末尾 command 1> filename (简写为 >) # stdout重定向 command 2> filename # stderr重 ... robotics 2
[ Shell ] 输入输出重定向(stdin, stdout, stderr) - 简书
WebMar 1, 2024 · 常规输出将发送到标准输出 (STDOUT) ,错误消息将发送到标准错误 (STDERR) 。 使用 > 符号重定向控制台输出时,只会重定向 STDOUT。 若要重定向 STDERR,必须 2> 指定重定向符号。 这会选择 STDERR 的第二个输出流。 示例. 不存在 file.xxx 的命令 dir file.xxx 将显示以下输出: Web75 Photos. CSH, Inc is a multi-state stone producer and distributor based out of Columbia, Tn with locations in middle and east Tennessee, Georgia, Alabama, and Indiana. CSH … Web我正在做一個項目,要求我在C程序的迷你外殼中具有輸出才能輸出到文件。 使用./program > file.txt將不起作用 。. 我有一個運行小命令的小型外殼程序,我想這樣做,以便當某人在命令末尾有一個> filename時,它將所有文本從printf()重定向到文件,而不是控制台,然后將其重定向回控制台。 robotics after school programs