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cut -cchars file
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-c5 ÌáÈ¡µÚ5¸ö×Ö·û
-c5- ÌáÈ¡µÚ5¸ö×Ö·ûÒÔºóµÄ×Ö·û
-c1,5,12 ÌáÈ¡¶à¸ö×Ö·û£¬ÖмäÓÓ,”·ûºÅ¸ô¿ª
-c5-14 ÌáÈ¡µÚ5¸ö×Ö·ûµ½µÚ14¸ö×Ö·û¼äµÄ×Ö·û
http://gan.cublog.cn
[service@dsg tmp]$ cat f.txt
service pts/0 Oct 9 20:27 (211.95.114.235)
service pts/1 Oct 9 21:06 (218.80.203.242)
service pts/2 Oct 9 14:35 (218.80.203.242)
service pts/3 Oct 9 21:07 (218.80.213.242)
service pts/4 Oct 9 21:07 (218.80.213.242)
service pts/5 Oct 9 21:45 (58.31.205.19)
[service@dsg tmp]$ cut -c5 f.txt
i
i
i
i
i
i
[service@dsg tmp]$ cut -c5- f.txt
ice pts/0 Oct 9 20:27 (211.95.114.235)
ice pts/1 Oct 9 21:06 (218.80.203.242)
ice pts/2 Oct 9 14:35 (218.80.203.242)
ice pts/3 Oct 9 21:07 (218.80.213.242)
ice pts/4 Oct 9 21:07 (218.80.213.242)
ice pts/5 Oct 9 21:45 (58.31.205.19)
[service@dsg tmp]$ cut -c1,5,14 f.txt
si0
si1
si2
si3
si4
si5
------------------------------
cut -d -f
-d, --delimiter=DELIM
use DELIM instead of TAB for field delimiter
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