Getting pids from ps -ef |grep keyword
You can use pgrep as long as you include the -f options. That makes pgrep match keywords in the whole command (including arguments) instead of just the process name.
pgrep -f keywordFrom the man page:
-fThe pattern is normally only matched against the process name. When-fis set, the full command line is used.
If you really want to avoid pgrep, try:
ps -ef | awk '/[k]eyword/{print $2}'Note the [] around the first letter of the keyword. That's a useful trick to avoid matching the awk command itself.