未加星标

Tabularizing output of shell scripts with column

字体大小 | |
[系统(linux) 所属分类 系统(linux) | 发布者 店小二05 | 时间 2017 | 作者 红领巾 ] 0人收藏点击收藏

I tend to live in my terminal and as such tend to write a bunch of shell scripts for various project specific things. One script I have lists, form a project directory, the what branch each of my repositories is on. It looks a bit like this,

#!/bin/bash projects=( super-service super-client authentication-service infrastructure ) for project in ${projects[*]}; do cd $project echo "$project $(git branch | sed -n -e 's/^\* \(.*\)/\1/p')" cd .. done

When I run this the output looks like this,

super-service master super-client master authentication-service experimental infrastructure master

The list is longer and the names above aren't real but you see the problem. It's hard to see at a glance what repos are on what branches.

Enter column

If you pipe the output of the script above in column -t -s' ' the result is a bit different.

super-service master super-client master authentication-service experimental infrastructure master

You can see from the output above the column command pretty much does what is says on the tin. It turns output into formatted table with discernible columns. This makes it much easier to read. The additional parameter I passed where,

-t which tells column to read the whole input and determine the number of columns automatically to print the table -s' ' specifies the character to use to determine a column break when using the -t command. In this case, we specify whitespace. In fact whitespace is the default character to break on so this is actually not needed in our case but if each column was separated by a | character we could use -s'|' to change the default behavior.

Now go forth and prettify those scripts, they're worth it.

本文系统(linux)相关术语:linux系统 鸟哥的linux私房菜 linux命令大全 linux操作系统

分页:12
转载请注明
本文标题:Tabularizing output of shell scripts with column
本站链接:http://www.codesec.net/view/520742.html
分享请点击:


1.凡CodeSecTeam转载的文章,均出自其它媒体或其他官网介绍,目的在于传递更多的信息,并不代表本站赞同其观点和其真实性负责;
2.转载的文章仅代表原创作者观点,与本站无关。其原创性以及文中陈述文字和内容未经本站证实,本站对该文以及其中全部或者部分内容、文字的真实性、完整性、及时性,不作出任何保证或承若;
3.如本站转载稿涉及版权等问题,请作者及时联系本站,我们会及时处理。
登录后可拥有收藏文章、关注作者等权限...
技术大类 技术大类 | 系统(linux) | 评论(0) | 阅读(71)