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human-readable command as bash alias

# docker stats usage - human readable version
alias dstat='printf "%-40s\tMem Usage\tMem %%\t\tCPU %%\n" "Name"; \
  printf "----------------------------------------------------------------------------------------------------\n"; \
  docker stats --no-stream --format "\t\t\t" | awk '\''{ \
  split($2, a, "[M|G]"); \
  if ($2 ~ /[0-9]+MiB/) { \
    printf("%-40s\t%.2f GiB", $1, a[1] / 1024); \
  } else { \
    printf("%-40s\t%.2f GiB", $1, a[1]); \
  } \
  printf("\t%s\t\t%s\n", $5, $6); \
}'\'' | sort -nrk 2'

string manipulation (for gawk)

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One example:

awk '{printf("%5.2f\n", $1+$2);}'

%: This indicates the beginning of a format specifier. 5: This defines the minimum width of the output to be 5 characters. .2: This defines the precision to be 2 decimal places. f: This specifies that the output should be formatted as a floating-point number. \n: This is a newline character that moves the output cursor to the next line.