SED complex string replacement

Shell Programming and Scripting
1 
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:

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

with this:

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

Thanks for the help

2

This is the escape anything vaguely risky and change the outer speech marks to different ones to those in the intended string method:

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 .

3

[quote=tonyfullermalv;302333647]
This is the escape anything vaguely risky and change the outer speech marks to different ones to those in the intended string method:

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:

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 .

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:

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:

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

Still haven't got this if anyone has any ideas.

5

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

ps -C java -o pid,cmd | grep ${SERVER_NAME} | cut -d' ' -f1 | grep -v grep| grep $(cat $PID_FILE) | grep -v grep

try

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
6 
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