Qiita Teams that are logged in
You are not logged in to any team

Log in to Qiita Team
Community
OrganizationEventAdvent CalendarQiitadon (β)
Service
Qiita JobsQiita ZineQiita Blog
10
Help us understand the problem. What are the problem?

More than 3 years have passed since last update.

@sowd

bashスクリプトで引数とパイプ経由の両方から情報を取得できるようにする。

内容

<スクリプト名>.sh abcまたはecho 'abc' | <スクリプト名>.shのどちらでも情報をできるようにする。

テスト用スクリプトファイル作成

▼ test.sh

#!/usr/local/bin/bash
data=''
if [ -t 0 ] ; then
  data="$1"
else
  data="$(cat -)"
fi
echo "$data"

動作確認

$ chmod 755 ./test.sh
$ ./test.sh 'abc'
abc
$ echo 'def' | ./test.sh 
def
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
10
Help us understand the problem. What are the problem?