Bash 실행결과를 변수에 담기

1 개요

Bash 실행결과 변수에 담기

리눅스 쉘 표준출력 변수에 담기

변수명=`명령어`

변수명=$(명령어)

2 실습 1

[root@jmnote ~]# whoami
root

[root@jmnote ~]# STR1=`whoami`
[root@jmnote ~]# echo $STR1
root

[root@jmnote ~]# STR2=$(whoami)
[root@jmnote ~]# echo $STR2
root

3 실습 2 (여러 줄)

[root@jmnote ~]# df -Pk
Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/mapper/VolGroup00-LogVol00  27678892  18857380   7392828      72% /
/dev/xvda1              101086     36768     59099      39% /boot
tmpfs                   524288         0    524288       0% /dev/shm

[root@jmnote ~]# STR3=`df`
[root@jmnote ~]# echo $STR3
Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 27678892 18857392 7392816 72% / /dev/xvda1 101086 36768 59099 39% /boot tmpfs 524288 0 524288 0% /dev/shm

[root@jmnote ~]# echo "$STR3"
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      27678892  18857392   7392816  72% /
/dev/xvda1              101086     36768     59099  39% /boot
tmpfs                   524288         0    524288   0% /dev/shm

4 같이 보기

• Bash 여러 줄 출력을 배열에 담기
• Bash에서 함수 반환 값 받기
• 표준입출력