grep -A 26 "some text" somefile.txt |
awk '/other text/ { gsub(/M/, " "); print $4 }' |
sort -n -r | uniq | head -1
將返回從大型文本文件中拉出的列表中的最大值,但是如何將輸出存儲爲變量?bash存儲輸出作爲變量
grep -A 26 "some text" somefile.txt |
awk '/other text/ { gsub(/M/, " "); print $4 }' |
sort -n -r | uniq | head -1
將返回從大型文本文件中拉出的列表中的最大值,但是如何將輸出存儲爲變量?bash存儲輸出作爲變量
my_var=$(grep -A 26 "some text" somefile.txt |
awk '/other text/ { gsub(/M/, " "); print $4 }' |
sort -n -r | uniq | head -n1)
此外,對於便攜性,我總是會用-n1
爲head
參數建議。我遇到了幾個使用-1
不起作用的化身。
我建議
variable_name=$(grep -A 26 "some text" somefile.txt |
awk '/other text/ { gsub(/M/, " "); print $4 }' |
sort -nru | head -1)
對於嵌套的情況下,反引號將工作太:
variable=`grep -A 26 "some text" somefile.txt |
awk '/other text/ { gsub(/M/, " "); print $4 }' |
sort -nru | head -1`