/command/{c=substr($2,1,index($2," ")-1)}

/command/{if(index($2," ")==0) {c=$2} else {c=substr($2,1,index($2," ")-1)}}

awk -F": " 'BEGIN{print "insert_job|job_type|command|machine|owner|condition|description|alarm_if_fail"}
{sub(/[ \t]+$/, "")} # New line added to remove any whitespaces/tabs at the end of each line.
{sub(/[ ]*job_type/,": job_type",$0)}
/insert_job/{a=$2}
/job_type/{b=$4}
/command/{if(index($2," ")==0) {c=$2} else {c=substr($2,1,index($2," ")-1)}}
/machine/{d=$2}
/owner/{e=$2}
/condition/{f=$2}
/description/{g=$2}
/alarm_if_fail/{h=$2;print a,b,c,d,e,f,g,h} # Modified a little bit to make it shorter than before
' OFS="|" inputfile

awk -F": " 'BEGIN{print "insert_job|job_type|command|machine|owner|condition|description|alarm_if_fail"} # We begin setting headers
{sub(/[ \t]+$/, "")} 
# To remove any whitespaces/tabs at the end of each line to avoid more if statements below

{sub(/[ ]*job_type/,": job_type",$0)} 
# Replace the string " job_type" with ": job_type" to work globally with FS=": "

#For the lines of code like: 
/STRING/{X=$i}
# All lines of this form means, "Search string "STRING", when it is found, assign value of field "i" of that line to variable "X".
 
/command/{if(index($2," ")==0) {c=$2} else {c=substr($2,1,index($2," ")-1)}} 
# Search string "command", when found analyse as follow
# The part "{if(index($2," ")==0) {c=$2}"  means, if in field 2 there are no any spaces "(index($2," ")==0)", assign value of field 2 to c,
#The part "else {c=substr($2,1,index($2," ")-1)}}" means, if there are spaces in $2, extract a new substring from $2, from the beginning up to the space position, (given by index..)
# the "-1" part is to remove the space at the end of the substring extracted from $2, resulting when is removed the "m" or any other word present.

/alarm_if_fail/{h=$2;print a,b,c,d,e,f,g,h} # The part "print a,b,c,d,e,f,g,h" prints all variables in the order showed
' OFS="|" inputfile # the part  OFS="|" at the end, sets the Output Field Separator = "|".