├── check-script.gif
├── README.md
└── check


/check-script.gif:
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https://raw.githubusercontent.com/remy/check/HEAD/check-script.gif


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/README.md:
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 1 | # Checks the status of a list of urls
 2 | 
 3 | Usage:
 4 | 
 5 | ```bash
 6 | $ ./check <url>
 7 | $ ./check < url-list.txt
 8 | $ ./check <url> -- -k # pass -k to curl command
 9 | ```
10 | 
11 | ![demo](check-script.gif)
12 | 
13 | Runs `GET` requests against the list of URLs and prints:
14 | 
15 | - status code
16 | - url
17 | - time to complete request
18 | - time to first byte (time_pretransfer - time_starttransfer)
19 | 
20 | Note: this was written on a Mac in a hacky fashion (sorry), but also not
21 | tested on other *nix systems. If you see a problem, please open a pull request.
22 | 


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/check:
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  1 | #!/bin/bash
  2 | 
  3 | # version 1.1.1
  4 | 
  5 | set -e
  6 | 
  7 | function cleanup {
  8 |   for pid in "${PIDS[@]}"
  9 |   do
 10 |     kill -0 $pid 2&> /dev/null && kill $pid
 11 |   done
 12 |   exit 0
 13 | }
 14 | 
 15 | function position {
 16 |   # based on a script from http://invisible-island.net/xterm/xterm.faq.html
 17 |   exec < /dev/tty
 18 |   oldstty=$(stty -g)
 19 |   stty raw -echo min 0
 20 | 
 21 |   # on my system, the following line can be replaced by the line below it
 22 |   # echo -en "\033[6n" > /dev/tty
 23 |   tput u7 > /dev/tty    # when TERM=xterm (and relatives)
 24 |   IFS=';' read -r -d R -a pos
 25 |   stty $oldstty
 26 | 
 27 |   # change from one-based to zero based so they work with: tput cup $row $col
 28 |   row=$((${pos[0]:2} - 1))    # strip off the esc-[
 29 |   col=$((${pos[1]} - 1))
 30 | 
 31 |   echo "$row"
 32 | }
 33 | 
 34 | function monitor {
 35 |   local url=$1
 36 |   local p=$((START_CURSOR+$2+1))
 37 | 
 38 |       # -w "$GREEN%{http_code}$RESET $url \\033[${p};${TIMING_COL}f%{time_total}s TTFB: %{time_connect} + %{time_starttransfer} (%{size_download})" \
 39 | 
 40 |   echo -e "\033[${p};0f$(curl ${CURL_ARGS} $url --compress -s -o /dev/null -w \
 41 |     "%{http_code}|%{time_total}|%{time_pretransfer}|%{time_starttransfer}\n"\
 42 |       | sed -n '/^/ s///p' \
 43 |       | while IFS='|' read http_code time_total time_pretransfer time_starttransfer;
 44 |       do
 45 |         if [[ $http_code > 399 ]]; then
 46 |           http_code="$RED$http_code$RESET"
 47 |         else
 48 |           http_code="$GREEN$http_code$RESET"
 49 |         fi
 50 |         TTFB=$(echo -e "$time_starttransfer $time_pretransfer" | awk '{ printf "%.3fs", $1 - $2 }')
 51 |         echo -e "$http_code $url \\033[${p};${TIMING_COL}f${time_total}s (TTFB $TTFB)"
 52 |     done)\n\033[${LAST_CURSOR};0f" &
 53 | 
 54 |   PIDS=("${PIDS[@]}" "$!")
 55 | }
 56 | 
 57 | declare -a PIDS
 58 | RED="\033[31m"
 59 | RESET="\033[0m"
 60 | GREEN="\033[32m"
 61 | START_CURSOR=$(position)
 62 | LAST_CURSOR=0
 63 | TIMING_COL=0
 64 | CURL_ARGS=""
 65 | declare -a URLS
 66 | 
 67 | if [ -t 0 ]; then # nothing on stdin
 68 |   if [ $# -eq 0 ] # if arg count is 0 - then error
 69 |     then
 70 |     echo -e "Usage:\n\n  ${RED}check${RESET} <url>\n  cat urls.txt | \033[1mcheck${RESET}\n"
 71 |     exit 1
 72 |   fi
 73 | else
 74 |   while read line # from stdin
 75 |   do
 76 |     URLS=("${URLS[@]}" $line)
 77 |   done
 78 | fi
 79 | 
 80 | # then double check the arguments on the command line
 81 | for ((i=0 ; i < $# ; i++)) # read each url individually
 82 | do
 83 |   if [ "$1" = "--" ] # if "end of options"
 84 |     then
 85 |     shift
 86 |     CURL_ARGS=$@ # the pass along the options to cURL
 87 |     break
 88 |   fi
 89 |   if [ -n "$1" ]
 90 |     then
 91 |     URLS=("${URLS[@]}" $1)
 92 |   fi
 93 |   shift
 94 | done
 95 | 
 96 | trap cleanup EXIT # so that we can put cURL in the background, but wait until it's finished
 97 | 
 98 | for url in "${URLS[@]}"
 99 | do
100 |   length=${#url}
101 |   if [[ $length > $TIMING_COL ]]; then TIMING_COL=$length; fi
102 |   echo -e "... $url"
103 | done
104 | 
105 | TIMING_COL=$(( $TIMING_COL + 6))
106 | LAST_CURSOR=$(position)
107 | 
108 | if [[ $LAST_CURSOR == $(( $(tput lines) - 1 )) ]]
109 |   then
110 |   START_CURSOR=$(( LAST_CURSOR - ${#URLS[@]}))
111 | fi
112 | 
113 | for index in "${!URLS[@]}"
114 | do
115 |   monitor ${URLS[index]} $index
116 | done
117 | 
118 | wait ${PIDS[@]}
119 | 


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