Entries Published On January, 2011
grep ile cok satir
grep ile arama yaparken, aradigimiz satirin altindaki veya ustundeki satirlarida bastirmak isteyebiliriz. tail -10 /var/log/dmesg | grep -B1 -A2 kjournald komutunun ciktisi asagidaki gibi olacaktir. [root@test mail]# tail -10 /var/log/dmesg | grep -B1 -A2 kjournald EXT3 FS on dm-0, internal journal kjournald starting. Commit interval 5 seconds EXT3 FS on cciss/c0d0p1, internal journal EXT3-fs: mounted …
Disk okuma ve yazma hizlarini test etmek
Diskin yazma hizini test etmek; [root@test ~]# dd if=/dev/zero of=of.txt bs=1k count=1000000 1000000+0 records in 1000000+0 records out 1024000000 bytes (1.0 GB) copied, 3.08095 seconds, 332 MB/s Diskin okuma hizini test etmek; [root@test ~]# hdparm -t /dev/cciss/c0d0 /dev/cciss/c0d0: Timing buffered disk reads: 412 MB in 3.01 seconds = 157.06 MB/sec