$ cat foo.txt
,,,,dog,,,,,111,,,,222,,,333,,,444,,,
,,,,cat,,,,,555,,,,666,,,777,,,888,,,
,,,,mouse,,,,,999,,,,122,,,133,,,144,,,
我可以打印第一場像這樣
$ awk -F, '{print $5}' foo.txt
dog
cat
mouse
但是我想忽略這些空字段,這樣我可以這樣調用
$ awk -F, '{print $1}' foo.txt
@sudo_O:無特殊原因,如such..you是正確的,它明確內部..更新它... – Guru