Archives
Archives
| From: | Alexander Skwar <listen@×××××××××××××××.name> | ||
|---|---|---|---|
| To: | gentoo-user@l.g.o | ||
| Subject: | Re: [gentoo-user] Re: [OT] Bash scripting | ||
| Date: | Fri, 11 Nov 2005 20:59:55 | ||
| Message-Id: | 437503EB.2010107@mid.email-server.info | ||
| In Reply to: | [gentoo-user] Re: [OT] Bash scripting by Peper |
||
| 1 | Peper schrieb: |
| 2 | > And one more thing, is there any smarter way to read one line of file then |
| 3 | > head -n x file|tail -n 1 ? |
| 4 | |
| 5 | sed. |
| 6 | |
| 7 | http://sed.sourceforge.net/sed1line.txt |
| 8 | |
| 9 | |[...] |
| 10 | | SELECTIVE PRINTING OF CERTAIN LINES: |
| 11 | |[...] |
| 12 | |
| 13 | |
| 14 | # print line number 52 |
| 15 | sed -n '52p' # method 1 |
| 16 | sed '52!d' # method 2 |
| 17 | sed '52q;d' # method 3, efficient on large files |
| 18 | |
| 19 | |
| 20 | -- |
| 21 | Alexander Skwar |
| 22 | -- |
| 23 | gentoo-user@g.o mailing list |