前往小程序,Get更优阅读体验!
立即前往
首页
学习
活动
专区
工具
TVP
发布
社区首页 >专栏 >BashBites:Check Files

BashBites:Check Files

作者头像
技术小黑屋
发布2018-09-04 16:34:30
6530
发布2018-09-04 16:34:30
举报
文章被收录于专栏:技术小黑屋技术小黑屋

Check a file exists

1 2 3 4 5 6 7

#!/bin/bash if [[ -e /tmp/adb.log ]] then echo "Exists" else echo "Not Exists" fi

Check Empty String

1 2 3 4 5 6

if [[ -z "$emptyString" ]] then echo "Empty" else echo "Not Empty" fi

Here is a reference material from Stackoverflowhttp://stackoverflow.com/questions/3767267/check-if-file-exists

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

-d FILE FILE exists and is a directory -e FILE FILE exists -f FILE FILE exists and is a regular file -h FILE FILE exists and is a symbolic link (same as -L) -r FILE FILE exists and is readable -s FILE FILE exists and has a size greater than zero -w FILE FILE exists and is writable -x FILE FILE exists and is executable -z STRING the length of STRING is zero

For more detailed information, please visit http://linux.about.com/library/cmd/blcmdl1_test.htm

Others

  • Pro Bash Programming: Scripting the Linux Shell
本文参与 腾讯云自媒体分享计划,分享自作者个人站点/博客。
如有侵权请联系 cloudcommunity@tencent.com 删除

本文分享自 作者个人站点/博客 前往查看

如有侵权,请联系 cloudcommunity@tencent.com 删除。

本文参与 腾讯云自媒体分享计划  ,欢迎热爱写作的你一起参与!

评论
登录后参与评论
0 条评论
热度
最新
推荐阅读
目录
  • Check a file exists
  • Check Empty String
  • Others
领券
问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档