Category Archives: unix

Replace end of lines with commas in sed

Posted on April 25, 2011 by niteartadmin

Need to extract numbers and create a comma separated list: $ sed -e :label -e N -e ‘s/\n/, /’ -e ‘s/[ |]//g’ -e tlabel <<xxxx > |     919 | > |    1027 | > |    1593 … Continue reading →

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strace – trace system calls and signals

Posted on January 13, 2009 by niteartadmin

Nice little program that might be used in linux to find what files were open by the process. For example: strace ls 2>&1|grep “open”

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How to find what application is using network port in linux?

Posted on December 30, 2008 by niteartadmin

netstat -nlp will give you an idea. [root@os]# netstat -nlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name tcp        0      0 0.0.0.0:9921                0.0.0.0:*                   LISTEN      10982/ora_d000_orcl tcp        0      0 10.10.10.10:1521           0.0.0.0:*                   LISTEN      12516/tnslsnr tcp        … Continue reading →

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Bacula backup

Posted on December 14, 2008 by niteartadmin

Backup job stopped with: Device is BLOCKED waiting to create a volume for: It means that bacula ran out of volumes or space on disk and want you to create new volume manually. Use “Label”, enter new volume name, assign … Continue reading →

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When you use ‘find’ and ‘zip’ in one sentence…

Posted on November 25, 2008 by niteartadmin

Instead of find albums -name *.jpg -not -name *.sized.jpg -not -name *.thumb.jpg -not -name *.highlight.jpg -exec zip -r -1 album.zip {} ;& use find albums -name *.jpg -not -name *.sized.jpg -not -name *.thumb.jpg -not -name *.highlight.jpg -print| zip -1 album.zip … Continue reading →

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