cut

bash cut columns to one file and save onto the end of another file

丶灬走出姿态 提交于 2021-02-07 13:24:42
问题 I would like to cut two columns from one file and stick them on the end of a second file. The two file have the exact same number of lines file1.txt 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 file2.txt a b c d e f g h i j a b c d e f g h i j a b c d e f g h i j a b c d e f g h i j So far I have been using cut -f9-10 file2.txt | paste file1.txt - > file3.txt which outputs exactly what I want 1 2 3 4 5 6 7 8 9 10 i j 1 2 3 4 5 6 7 8 9 10 i j 1 2 3 4 5 6 7 8 9 10 i j However

bash cut columns to one file and save onto the end of another file

旧时模样 提交于 2021-02-07 13:24:31
问题 I would like to cut two columns from one file and stick them on the end of a second file. The two file have the exact same number of lines file1.txt 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 file2.txt a b c d e f g h i j a b c d e f g h i j a b c d e f g h i j a b c d e f g h i j So far I have been using cut -f9-10 file2.txt | paste file1.txt - > file3.txt which outputs exactly what I want 1 2 3 4 5 6 7 8 9 10 i j 1 2 3 4 5 6 7 8 9 10 i j 1 2 3 4 5 6 7 8 9 10 i j However

Find cut set in a graph [duplicate]

点点圈 提交于 2021-01-28 08:40:41
问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Algorithm: for G = (V,E), how to determine if the set of edges(e belong to E) is a valid cut set of a graph A subset S, of edges of a graph G = (V,E), how can one check whether it is a valid cut-set of the graph or not? Note: A cut is a partition of the vertices of a graph into two disjoint subsets. So, cut-set of the cut is the set of edges whose end points are in different subsets of the partition. I am

FFMPEG not “cutting” as expected in Android

主宰稳场 提交于 2021-01-07 02:48:51
问题 I referred FFMPEG not "cutting" as expected to split video in chunks in below format: 00:00:00 - 00:00:01 00:00:01 - 00:00:02 00:00:02 - 00:00:03 00:00:03 - 00:00:04 00:00:04 - 00:00:05 Here is the command i used: String[] cmd1 = new String []{"-ss", "00:00:00.000", "-i", inputVideoUrl, "-t", "00:00:01.000", "-c:v", "libx264", "-strict", "-2", outputPath}; String[] cmd2 = new String []{"-ss", "00:00:01.000", "-i", inputVideoUrl, "-t", "00:00:02.000", "-c:v", "libx264", "-strict", "-2",

cut extracting the minimum and maximum of cut levels as columns in data.frame

泄露秘密 提交于 2020-05-15 03:21:47
问题 I have a numeric vector that I want to convert to five numeric levels. I can get the five levels using cut dx <- data.frame(x=1:100) dx$cut <- cut(dx$x,5) But I am now having problems extracting the lower and upper boundaries of the levels. So for example (0.901,20.8] would be 0.901 in dx$min and 20.8 in dx$max . I tried: dx$min <- pmin(dx$cut) dx$max <- pmax(dx$cut) dx But this does not work. 回答1: you can try splitting the labels (converted to character beforehand and modified to suppress

Cut Function: Making Irregular cuts in R

走远了吗. 提交于 2020-05-09 17:12:56
问题 I need to use the cut function to divide into irregular, uneven breaks. I need to cut into ranges such as 1 to 15, 16 to 19, 20 to 45... ect. Though I do not know how to do this or if it is possible. Please help! 回答1: ?cut is a good first step... Here is a sample from which you can build: # create a long vector that you want to cut z <- rnorm(10000) # create a vector with irregular breakpoints breaks <- c( -6, -1, 1, 3, 6 ) # cut the long vector, look at the `table()`d result table( cut( z,

[转帖] Linux下cut命令用法详解

纵饮孤独 提交于 2020-03-29 08:33:25
以下内容欢迎转载,但请保留作者名号及出处,谢谢! 原创:frozen_sucker 链接:http://blog.csdn.net/Frozen_fish/archive/2008/04/08/2260804.aspx 写的挺好的 自己之前只是建别人用过 现在自己试了下 原来很简单. 挺好的. Linux下cut命令用法详解 原创:frozen_sucker(冰棍) 有时我们经常会遇到这样一些问题:有一页电话号码薄,上面按顺序规则地写着人名、家庭住址、电话、备注等,此时我们只想取出所有人的名字和其对应的电话号码,你有几种方法可以实现呢? 确实这种纵向定位的方式用常规办法难以实现,这时,cut就可以大显身手了。 What’s cut? 子曰:cut命令可以从一个文本文件或者文本流中提取文本列。 命令用法: cut -b list [-n] [file ...] cut -c list [file ...] cut -f list [-d delim][-s][file ...] l 上面的-b、-c、-f分别表示字节、字符、字段(即byte、character、field); l list表示-b、-c、-f操作范围,-n常常表示具体数字; l file表示的自然是要操作的文本文件的名称; l delim(英文全写:delimiter)表示分隔符,默认情况下为TAB; l

echo output not getting assigned to a variable in shell script

喜夏-厌秋 提交于 2020-03-25 19:24:30
问题 end=echo $FSDB_FILE_NAME | rev | cut -d'_' -f 2 |rev begin=echo $FSDB_FILE_NAME | rev | cut -d'_' -f 3 |rev echo $end echo $begin echo abc_11204.00_15713.00_.csv | rev | cut -d'_' -f 2 |rev ---- This works But echo $end is not printing anything I even tried: set end=echo abc_11204.00_15713.00_.csv | rev | cut -d'_' -f 2 |rev echo $end This prints empty Please help me with this Sample input : abc_123.00_345.00_xyz.csv Output : end=345.00 begin=123.00 回答1: Could you please try following. Easy