cat

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Explained shell statement

The following statement will remove line numbers in a txt file: cat withLineNumbers.txt | sed \'s/^.......//\' >> withoutLineNumbers.txt[详细]

2023-02-11 01:39 分类：问答
need help with grep on output of another grep command

I have a file test.log. Very big log f开发者_运维问答ile. It has different levels of logging. For eg, trace, debug, info, warning and error.[详细]

2023-02-08 15:36 分类：问答
Bash cat files in a directory into one file inserting filename before content

I have a directory of txt files to cat into another file. But I need to put a header before the content of each file. Specifically, I would like 开发者_StackOverflow社区to do something like this:[详细]

2023-02-08 02:35 分类：问答
Two filters circularly linked by two named pipes (FIFO) on Linux

I want to make two processes communicate with each other via two named pipes on Linux开发者_运维知识库.[详细]

2023-02-06 10:24 分类：问答
fundamentals of piping two stdout to stdin

I\'m a bit green when it comes to piping. What I\'m trying to do (on a Windows PC, but I\'d guess it\'s the same as for UNIX) is this:[详细]

2023-02-04 08:37 分类：问答
NSTask problem with 'cat' command

I try concatenating files using the cat command. When I use this in the terminal, everything works fine :[详细]

2023-02-01 04:27 分类：问答
《MOON CAT》MP3歌词-38°？

MOON CAT 38° 专辑：月亮猫语种：英语流派：Rock 本歌词于吾爱知道收集 MOON CAT - 38°[详细]

2023-01-30 13:21 分类：问答
display two files horizontally in the shell

file 1: dsf sdfsd dsfsdf file 2: sdfsdfsd sdfsdsdfsdf dsfsdfsdfsdf I want to cat two files horizontally so the result is:[详细]

2023-01-29 12:05 分类：问答
How can I cat multiple files together into one without intermediary file? [closed]

Closed. This question is opinion-based. It is not currently accepting answers. 开发者_StackOverflow社区[详细]

2023-01-22 18:33 分类：问答
in R, can I stop print(cat("")) from returning NULL? and why does cat("foo") return foo>

If I enter print(cat(\"\")) I get NULL I want to use cat() to print out the progress of an R script, but I don\'t understand why it is returning NULL at the e开发者_如何转开发nd of all of my co[详细]

2023-01-22 09:35 分类：问答