Bash script to fetch and sort the top CPU consuming process, displaying a concatenated form of the process startup command line arguments

top-cpu-process.sh

# The sed expression is intended to replace this:
# %CPU %MEM COMMAND
#  0.0  0.1 some really really really long process args
# with this:
# %CPU %MEM COMMAND
#  0.0  0.1 some reall...ocess args
# In the sed regex:
#  [^[:space:]]*  means "a sequence non-whitespace characters"
#  \s*  means "a sequence of whitespace characters"
# The sed regex matches the first and last 10 characters of the process args,
# and concatenates them with an ellipsis ... for easier viewing.
echo "%CPU %MEM ARGS $(date)" && \
  ps -e -o pcpu,pmem,args --sort=pcpu | \
  sed -e 's/\(^\s*[^[:space:]]*\s*[^[:space:]]*\s*\)\(.\{10\}\).*\(.\{10\}.$\)/\1\2...\3/'