<div dir="ltr">Has anyone seen this happen? On several Ubuntu server systems (10.04, 14.04, 15.10), I&#39;ll be scrolling through the bash history with the up-arrow, and suddenly there will be a ton a code with the word &quot;tideway&quot; used in it very often. I&#39;ll check the dot-bash_history file, and sure enough there are large sections of script/code in there which I obviously did not type.<div><br></div><div>Where did it come from? How do I stop it?</div><div><br></div><div>Here&#39;s a short sample:</div><div><br></div><div><div>tw_command() { cpuspeed=`egrep &#39;^(cpu MHz|cpu clock|clock)&#39; /proc/cpuinfo | cut -f2 -d: | sed -e &#39;s/\.[0-9]*//&#39; -e &#39;s/Mhz//i&#39; -e &#39;s/ //g&#39; | head -n 1`;  cputype=`egrep &#39;^cpu[^a-z]*:&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^model name&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^arch&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^(cpu model|family|vendor_id|machine|Processor)&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi;  logical=`egrep &#39;^[pP]rocessor&#39; /proc/cpuinfo | sort -u | wc -l`;  physical=0; cores=0; threads_per_core=0;  if [ &quot;`echo $cputype | cut -c-2`&quot; = &quot;PA&quot; ]; then     cpufamily=`egrep &#39;^(cpu family)&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`;     if [ &quot;`echo $cpufamily | cut -c-7`&quot; = &quot;PA-RISC&quot; ]; then         cputype=&quot;${cp(tideway_i=__TIDEWAY; echo ${tideway_i}_CMD_START__; tw_command; echo ${tideway_i}_CMD_END__)                                      tw_command() { cpuspeed=`egrep &#39;^(cpu MHz|cpu clock|clock)&#39; /proc/cpuinfo | cut -f2 -d: | sed -e &#39;s/\.[0-9]*//&#39; -e &#39;s/Mhz//i&#39; -e &#39;s/ //g&#39; | head -n 1`;  cputype=`egrep &#39;^cpu[^a-z]*:&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^model name&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^arch&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi; if [ &quot;${cputype}&quot; = &quot;&quot; ]; then     cputype=`egrep &#39;^(cpu model|family|vendor_id|machine|Processor)&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`; fi;  logical=`egrep &#39;^[pP]rocessor&#39; /proc/cpuinfo | sort -u | wc -l`;  physical=0; cores=0; threads_per_core=0;  if [ &quot;`echo $cputype | cut -c-2`&quot; = &quot;PA&quot; ]; then     cpufamily=`egrep &#39;^(cpu family)&#39; /proc/cpuinfo | sort -u | cut -f2 -d: | sed -e &#39;s/^ //&#39; |  head -n 1`;     if [ &quot;`echo $cpufamily | cut -c-7`&quot; = &quot;PA-RISC&quot; ]; then         cputype=&quot;${cpprintf(&quot;hostid: &quot;);</div></div><div><br></div></div>