esh(1) is an enhanced version of envsubst(1) that evaluates more than just
environment variables, but also whole bash-like expressions. For example,
Hello ${RECIPIENT},
Your machine $(hostname) is seeing an abnormally high amount of usage.
Processes using the most memory:
$(ps aux --sort=-%mem | awk 'NR<=6{FS=" "; OFS="\t"; print $1, $4, $11}')
Processes using the most cycles:
$(ps aux --sort=-%cpu | awk 'NR<=6{FS=" "; OFS="\t"; print $1, $3, $11}')
Regards,
System Administratorwill become something like the following:
Hello Josh,
Your machine localhost is seeing an abnormally high amount of usage.
Processes using the most memory:
USER %MEM COMMAND
user 11.1 /opt/google/chrome/chrome
user 10.1 /opt/google/chrome/chrome
user 8.9 /opt/google/chrome/chrome
user 8.5 /opt/google/chrome/chrome
user 7.1 /opt/google/chrome/chrome
Processes using the most cycles:
USER %CPU COMMAND
user 7.2 /opt/google/chrome/chrome
user 5.7 /opt/google/chrome/nacl_helper
user 2.4 /opt/google/chrome/chrome
user 1.1 /opt/google/chrome/chrome
user 1.1 /opt/google/chrome/chrome
Regards,
System Administrator
As you may have guessed, this was inspired by ruby's erb(1).
make- build executablemake debug- build debug executable (prints debug information from yacc)make [f]clean- cleans up object files and files generated by yacc & lex
See Makefile for more about each target.
MIT
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