sj

   1 #!/usr/bin/env bash
   2
   3 #=======================================================================
   4 # sj
   5 # File ID: 29dba898-4962-11df-adc3-d5e071bed206
   6 #
   7 # Shortcut to check various stuff.
   8 #
   9 # Author: Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later.
  11 #=======================================================================
  12
  13 progname=sj
  14 VERSION=0.10.0
  15
  16 ARGS="$(getopt -o "\
  17 h\
  18 q\
  19 v\
  20 W\
  21 " -l "\
  22 help,\
  23 maxtemp:,\
  24 quiet,\
  25 space:,\
  26 verbose,\
  27 version,\
  28 wait,\
  29 " -n "$progname" -- "$@")"
  30 test "$?" = "0" || exit 1
  31 eval set -- "$ARGS"
  32
  33 std_maxtemp=94
  34
  35 opt_help=0
  36 opt_maxtemp=$std_maxtemp
  37 opt_quiet=0
  38 opt_space='0'
  39 opt_verbose=0
  40 opt_wait=0
  41 while :; do
  42     case "$1" in
  43         -h|--help) opt_help=1; shift ;;
  44         --maxtemp) opt_maxtemp=$2; shift 2 ;;
  45         -q|--quiet) opt_quiet=$(($opt_quiet + 1)); shift ;;
  46         --space) opt_space=$2; shift 2 ;;
  47         -v|--verbose) opt_verbose=$(($opt_verbose + 1)); shift ;;
  48         --version) echo $progname $VERSION; exit 0 ;;
  49         -W|--wait) opt_wait=1; shift ;;
  50         --) shift; break ;;
  51         *) echo $progname: Internal error >&2; exit 1 ;;
  52     esac
  53 done
  54 opt_verbose=$(($opt_verbose - $opt_quiet))
  55
  56 if test "$opt_help" = "1"; then
  57     test $opt_verbose -gt 0 && { echo; echo $progname $VERSION; }
  58     cat <<END
  59
  60 Usage: $progname [options] [command]
  61
  62 Options:
  63
  64   -h, --help
  65     Show this help.
  66   --maxtemp NUM
  67     Define maximum acceptable temperature for "$progname temp-warn".
  68     Default value: $std_maxtemp
  69   -q, --quiet
  70     Be more quiet. Can be repeated to increase silence.
  71   --space BYTES
  72     When used with "dfull":
  73       Estimate time until the free disk space reaches BYTES. This value
  74       is parsed by numfmt(1) from GNU coreutils, check the man page for
  75       allowed values. Examples: 10M = 10000000, 10Mi = 10485760.
  76   -v, --verbose
  77     Increase level of verbosity. Can be repeated.
  78   --version
  79     Print version information.
  80   -W, --wait
  81     When used with "dfull":
  82       Wait until the amount of free space changes before starting the
  83       measurement.
  84
  85   allspace
  86     Display free space of all local disks every 2nd second until
  87     interrupted.
  88   date
  89     Run a query against pool.ntp.org to see how accurate the system
  90     clock is.
  91   dfull
  92     Display estimated time until the current disk is full based on the
  93     disk usage since the script was started.
  94   df
  95     Display free space of all local disks, sorted by free space.
  96   kern
  97     Follow the kernel log and display new entries immediately when they
  98     occur.
  99   ping
 100     Check that the network is up by issuing a ping command until
 101     interrupted.
 102   space
 103     Display free space of the current disk every second until
 104     interrupted.
 105   temp
 106     Display current temperature.
 107   temp-warn, tw
 108     Loop and check CPU temperature. If it gets too high, create an
 109     xmessage(1) window and send a warning to stderr.
 110
 111 END
 112     exit 0
 113 fi
 114
 115 space_val="$(numfmt --from=auto --round=nearest -- $opt_space)"
 116 test -z "$space_val" && {
 117     echo "$progname: Invalid value in --space argument" >&2
 118     exit 1
 119 }
 120 test $opt_verbose -ge 1 &&
 121     echo "$progname: Using --space $space_val" >&2
 122
 123 free_space() {
 124     df -B1 "$1" -P | tail -1 | tr -s ' ' | cut -f 4 -d ' ' \
 125     | hum | rmspcall | tr -d '\n'
 126 }
 127
 128 free_space_bytes() {
 129     df -B 1 "$1" -P | tail -1 | tr -s ' ' | cut -f 4 -d ' ' | tr -d '\n'
 130 }
 131
 132 all_free_space() {
 133     mount | grep ^/dev/ | cut -f 3 -d ' ' | sort | while read f; do
 134         [ "$f" = "/boot" -o "$f" = "/boot/efi" ] && continue
 135         echo -n " ║ "
 136         if test "$f" = "/"; then
 137             echo -n "/ ";
 138             free_space /
 139         else
 140             echo "$f " | rev | cut -f 1 -d / | rev | tr -d '\n'
 141             free_space "$f"
 142         fi
 143     done
 144     echo
 145 }
 146
 147 [ -z "$1" ] && { echo $progname: No command specified >&2; exit 1; }
 148 if test "$1" = "allspace"; then
 149     unset prev
 150     while :; do
 151         curr="$(all_free_space)"
 152         if test "$curr" != "$prev"; then
 153             echo
 154             echo -n "$(date +"%d %H:%M:%S")$curr$(tput el)"
 155         fi
 156         prev="$curr"
 157         sleep 1
 158     done
 159 elif test "$1" = "date"; then
 160     ntpdate -q pool.ntp.org
 161 elif test "$1" = "df"; then
 162     df -h --si | grep ^Filesystem
 163     df -h --si --total | grep -e /dev/ -e ^total | sort -h -k4
 164 elif test "$1" = "dfull"; then
 165     if test "$opt_wait" = "1"; then
 166         beg_df="$(df -B1 .)"
 167         curr_df="$(df -B1 .)"
 168         echo -n $progname: Waiting for change in free space... >&2
 169         while test "$beg_df" = "$curr_df"; do
 170             sleep 2
 171             curr_df="$(df -B1 .)"
 172         done
 173         echo ok >&2
 174     fi
 175     origsec=$(date +%s)
 176     origtime="$(date -u +"%Y-%m-%d %H:%M:%S.%N")"
 177     origdf=$(( $(free_space_bytes .) - $space_val ))
 178     prevdf=$origdf
 179     ml_goalint=14
 180     ml_goaltime=9
 181     ml_dfdiff=1
 182     while :; do
 183         currtime="$(date -u +"%Y-%m-%d %H:%M:%S.%N")"
 184         currsec=$(date +%s)
 185         currdf=$(( $(free_space_bytes .) - $space_val ))
 186         goal_output="$(
 187             goal "$origtime" "$origdf" 0 "$currdf" 2>/dev/null
 188         )"
 189         dfdiff="$(( $currdf-$origdf ))"
 190         goalint=$(echo $goal_output | awk '{print $1}' | sed 's/\..*//')
 191         goaldate=$(echo $goal_output | awk '{print $2}')
 192         goaltime=$(echo $goal_output | awk '{print $3}' | sed 's/\..*//')
 193         cl_goalint=$(echo $goalint | wc -L)
 194         cl_goaltime=$(echo $goaltime | wc -L)
 195         cl_dfdiff=$(echo $dfdiff | hum | wc -L)
 196         seconds=$(echo $currsec-$origsec | bc)
 197
 198         test $cl_goalint -gt $ml_goalint && ml_goalint=$cl_goalint
 199         test $cl_goaltime -gt $ml_goaltime && ml_goaltime=$cl_goaltime
 200         test $cl_dfdiff -gt $ml_dfdiff && ml_dfdiff=$cl_dfdiff
 201
 202         if test "$(echo "$currdf < $prevdf" | bc)" = "1"; then
 203             t_diskfree="$(tput bold; tput setaf 1)"
 204             t_diskfree_reset="$(tput sgr0)"
 205         elif test "$(echo "$currdf > $prevdf" | bc)" = "1"; then
 206             t_diskfree="$(tput bold; tput setaf 2)"
 207             t_diskfree_reset="$(tput sgr0)"
 208         else
 209             t_diskfree=""
 210             t_diskfree_reset=""
 211         fi
 212
 213         if test -n "$goal_output"; then
 214             printf \
 215 "\\n"\
 216 "%-${ml_goalint}s "\
 217 "%s "\
 218 "%-${ml_goaltime}s "\
 219 "diff: %s%-${ml_dfdiff}s%s  "\
 220 "free: %s%s%s"\
 221 "%s "\
 222 "%s"\
 223                 "$goalint" \
 224                 "$goaldate" \
 225                 "$goaltime" \
 226                 "$t_diskfree" \
 227                 "$(echo $dfdiff | hum)" \
 228                 "$t_diskfree_reset" \
 229                 "$t_diskfree" \
 230                 "$(echo $currdf | hum)" \
 231                 "$t_diskfree_reset" \
 232                 "$(tput el)" \
 233                 "$(
 234                     if test $seconds -gt 0; then
 235                         printf " %s B/s" $(
 236                             printf 'scale=0; %d/%u\n' $dfdiff $seconds |
 237                                 bc | hum
 238                         )
 239                     fi
 240                 )"
 241         else
 242             printf "\\n$progname dfull: No changes yet, %s%s%s bytes free%s" \
 243                 "$t_diskfree" \
 244                 "$(echo $currdf | hum)" \
 245                 "$t_diskfree_reset" \
 246                 "$(tput el)"
 247         fi
 248         prevdf=$currdf
 249         sleep 2
 250     done
 251 elif test "$1" = "kern"; then
 252     tail -Fq /var/log/kern.log /var/log/syslog /var/log/auth.log \
 253     | grep -v " $(hostname) CRON"
 254 elif test "$1" = "space"; then
 255     unset prevlast
 256     while :; do
 257         lastspace=$(free_space .)
 258         if test "$lastspace" != "$prevlast"; then
 259             echo -n " $lastspace $(tput el)"
 260             prevlast=$lastspace
 261         fi
 262         sleep 1
 263     done
 264 elif test "$1" = "temp"; then
 265     temperature_file=/sys/devices/virtual/thermal/thermal_zone0/temp
 266     if test ! -e "$temperature_file"; then
 267         echo $progname: $temperature_file: File not found >&2
 268         echo $progname: Cannot read temperature >&2
 269         exit 1
 270     fi
 271     (
 272         echo scale=1
 273         echo -n $(cat "$temperature_file")
 274         echo / 1000
 275     ) | bc -l
 276 elif test "$1" = "temp-warn" -o "$1" = "tw"; then
 277     unset prevtemp
 278     dispfile="/tmp/sj_tw.$(date +%s).$$.tmp"
 279     if test -e "$dispfile"; then
 280         echo $progname: $dispfile: Tempfile already exists, that\'s spooky >&2
 281         exit 1
 282     fi
 283     while :; do
 284         currtemp="$($progname temp)"
 285         if test -z "$currtemp"; then
 286             echo -n "$progname: Unable to read temperature, " >&2
 287             echo \"$progname temp\" returned nothing >&2
 288             exit 1
 289         fi
 290         if test "$currtemp" != "$prevtemp"; then
 291             echo $(date -u +"%Y-%m-%dT%H:%M:%SZ") $currtemp >>~/log/temp.log
 292             echo -n " $currtemp $(tput el)"
 293             prevtemp=$currtemp
 294         fi
 295         if test $(echo "$currtemp > $opt_maxtemp" | bc) = "1"; then
 296             grep Blimey "$dispfile" 2>/dev/null | grep -q . && rm "$dispfile"
 297             if test ! -e $dispfile; then
 298                 warning="Oi! The temperature is $currtemp!"
 299                 xmessage -button Blimey -print "$warning" >"$dispfile" &
 300                 (
 301                     echo
 302                     tput setab 1
 303                     tput bold
 304                     tput setaf 3
 305                     echo -n "$progname: $warning"
 306                     tput sgr0
 307                     echo -n " "
 308                     tput el
 309                 ) >&2
 310             fi
 311         fi
 312         sleep 2
 313     done
 314 elif test "$1" = "ping"; then
 315     test -d /n900/. && sudo=sudo || unset sudo
 316     while :; do
 317         $sudo ping 178.79.142.16
 318         sleep 1
 319         echo ============================================
 320     done
 321 else
 322     echo $progname: $1: Unknown command >&2
 323     exit 1
 324 fi