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SED complex string replacement

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# 1  
Old 07-13-2009
SED complex string replacement
Code:
sed -i 's:"ps -ef | grep $(cat $PID_FILE) | grep -v grep":"ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep":g' scriptName

That's what I'm attempting to do. I'm attempting to replace this:

Code:
ps -ef | grep $(cat $PID_FILE) | grep -v grep

with this:
Code:
ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep

Thanks for the help
# 2  
Old 07-13-2009
This is the escape anything vaguely risky and change the outer speech marks to different ones to those in the intended string method:
Code:
sed -i "s/ps \-ef \| grep \$\(cat \$PID_FILE\) \| grep \-v grep/ps \-C java \-o pid\,cmd \| grep \$\{SERVER_NAME\} \| cut \-d\' \' \-f1 \| grep \-v grep/" scriptName

brutal but is works as long as you drop the g for global replace, because surely the script does not have:
[code]
ps -ef | grep $(cat $PID_FILE) | grep -v grep
[/code
twice in one line?
If not the /g at the end of the sed statement is not needed .
Last edited by TonyFullerMalv; 07-13-2009 at 06:39 PM..
# 3  
Old 07-14-2009
Quote:
Originally Posted by TonyFullerMalv
This is the escape anything vaguely risky and change the outer speech marks to different ones to those in the intended string method:
Code:
sed -i "s/ps \-ef \| grep \$\(cat \$PID_FILE\) \| grep \-v grep/ps \-C java \-o pid\,cmd \| grep \$\{SERVER_NAME\} \| cut \-d\' \' \-f1 \| grep \-v grep/" scriptName

brutal but is works as long as you drop the g for global replace, because surely the script does not have:
[code]
ps -ef | grep $(cat $PID_FILE) | grep -v grep
[/code
twice in one line?
If not the /g at the end of the sed statement is not needed .
Code:
ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep| grep $(cat $PID_FILE) | grep -v grep


That was my result. It semi-worked. The line should end at the first 'grep -v grep'


cut -d' ' -f1 | grep -v grep---------This is where the replacement command ends, and the remainder of this shouldn't be in here-----------------| grep $(cat $PID_FILE)

Here is the actual code it's in:

before replacement:

Code:
if test -f $PID_FILE ; then
  if (ps -ef | grep $(cat $PID_FILE) | grep -v grep) ; then
      echo "\nProcess already running, exiting start script."
      exit 1
  fi
fi


After running the sed command:

Code:
if test -f $PID_FILE ; then
  if (ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep| grep $(cat $PID_FILE) | grep -v grep) ; then
      echo "\nProcess already running, exiting start script."
      exit 1
  fi

# 4  
Old 07-23-2009
Still haven't got this if anyone has any ideas.
# 5  
Old 07-23-2009
why do you want to do this? can't you just use the use this code? if that command varies you'll likely encounter more problems
Code:
ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep| grep $(cat $PID_FILE) | grep -v grep

try

Code:
sed "s/ps -ef | grep \$(cat \$PID_FILE) | grep -v grep/ps -C java -o pid,cmd | grep \$\{SERVER_NAME\} | cut -d' ' -f1 | grep -v grep/" file

Last edited by ryandegreat25; 07-23-2009 at 10:18 PM..
# 6  
Old 07-23-2009
Code:
perl -ne 's/ps -ef \| grep \$\(cat \$PID_FILE\) \| grep -v grep/ps -C java -o pid,cmd \| grep \${SERVER_NAME} \| cut -d -f1 \| grep -v grep/;' -ne "s/-d/-d' '/; print" <file_name>

tyler_durden
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