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how_to [2016/08/18 15:56] – [Crontab with own php.ini and send result to mail] k2patelhow_to [2020/08/10 02:35] (current) – external edit 127.0.0.1
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 To drop all the table in the mysql database - use the following command. To drop all the table in the mysql database - use the following command.
 +<WRAP prewrap>
 <code mysql> <code mysql>
 mysqldump -u[USERNAME] -p[PASSWORD] --add-drop-table --no-data [DATABASE] | grep ^DROP | mysql -u[USERNAME] -p[PASSWORD] [DATABASE] mysqldump -u[USERNAME] -p[PASSWORD] --add-drop-table --no-data [DATABASE] | grep ^DROP | mysql -u[USERNAME] -p[PASSWORD] [DATABASE]
 </code> </code>
 +</WRAP>
  
 ==== How to list pear using php ==== ==== How to list pear using php ====
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 ==== Creating patch for rpm ==== ==== Creating patch for rpm ====
 +this can be used as '%patch0 -p1 -b <file_name>'
 <code bash> <code bash>
 diff -ru hdf-4.2.12-orig hdf-4.2.12-diff >| ../SOURCES/hdf-4.2.12.example.patch diff -ru hdf-4.2.12-orig hdf-4.2.12-diff >| ../SOURCES/hdf-4.2.12.example.patch
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 </code> </code>
 </WRAP> </WRAP>
 +
 +==== Run single command parallel'y with diff values ====
 +<WRAP prewrap>
 +<code bash>
 +(echo "http://test.k2patel.in"; echo "http://test.ornl.gov"; echo "http://yahoo.com" ) | parallel 'ab -n 50 -c 50 {}'
 +</code>
 +</WRAP>
 +
 +==== Print yum variable value ====
 +<code python>
 +import yum
 +import pprint 
 +
 +yvar = yum.YumBase()
 +pprint.pprint(yvar.conf.yumvar, width=1)
 +</code>
 +
 +==== Disable Predictable interface name in RHEL / CentOS ====
 +Pass following during boot kernel command line.
 +<code bash>
 +net.ifnames=0
 +</code>
how_to.1471535806.txt.gz · Last modified: 2020/08/10 02:30 (external edit)