Env-info? How?

[bones]

I've noticed on some recent screenshots that folks are using "env-info" to generate "screenfetch" or "archey"-like environment info, minus the annoying (and bloated, haha) ASCII logo. Is this a BBQ tool or script that I missed somehow? Did a search and turned up nothing.

I can haz env-info?

[machinebacon]

Code: Select all

#!/bin/bash

# simple screen information script
# similar to archey and screenfetch without annoying ASCII graphics

# this script is provided with NO GUARANTEE and NO SUPPORT 
# if it breaks or does not do what you want, FIX IT YOURSELF

# wm array -- add any that need to be recognized
wms=( herbstluftwm i3 blackbox kwin awesome spectrwm matwm2 wmfs karmen fvwm cwm sithwm ratpoison evilwm xfwm4 openbox fluxbox pekwm)

# define colors for color-echo
red="\e[31m"
grn="\e[32m"
ylw="\e[33m"
cyn="\e[36m"
blu="\e[34m"
prp="\e[35m"
rst="\e[0m"    

TMP=$(mktemp)    # make temp file

color-echo() {  # print with colors
    echo -e $cyn$1': '$rst$2
}

print-kernel() {
    color-echo 'Kernel' "$(uname -smr)"
}

print-uptime() {
    up=$(</proc/uptime)
    up=${up//.*}                # string before first . is seconds
    days=$((${up}/86400))       # seconds divided by 86400 is days
    hours=$((${up}/3600%24))    # seconds divided by 3600 mod 24 is hours
    mins=$((${up}/60%60))       # seconds divided by 60 mod 60 is mins
    color-echo "Uptime" "$days"'d '"$hours"'h '"$mins"'m'
}

print-shell() {
    color-echo 'Shell' $SHELL
}

print-cpu() {
    arm=$(grep ARM /proc/cpuinfo)    # ARM procinfo uses different format
    if [ "$arm" != "" ]; then
        cpu=$(grep -m1 -i 'Processor' /proc/cpuinfo)
    else
        cpu=$(grep -m1 -i 'model name' /proc/cpuinfo)
    fi    
    color-echo 'CPU' "${cpu#*: }" # everything after colon is processor name
}

print-disk() {
    df -h / > $TMP
    total=$(awk 'NR==2 { print $2 }' $TMP) # field 2 on line 2 is total
    used=$(awk 'NR==2 { print $3 }' $TMP)  # field 3 on line 2 is used
    color-echo 'Disk' "$used / $total"
}

print-mem() {
    free -h > $TMP
    total=$(awk 'NR==2 { print $2 }' $TMP)   # field 2 on line 2 is total
    used=$(awk 'NR==3 { print $3 }' $TMP)    # field 3 on line 3 is used
    color-echo 'Mem' "$used / $total"
}

print-wm() {
    for wm in ${wms[@]}; do          # pgrep through wmname array
        pid=$(pgrep -u $USER $wm)    # if found, this wmname has running process
        if [ "$pid" ]; then
            color-echo 'WM' $wm
        fi
    done
}

print-de() {
    if [ $(pgrep -u $USER lxsession) ]; then         # if lxsession is running, assume LXDE
        color-echo 'DE' 'LXDE'
    elif [ $(pgrep -u $USER xfce4-session) ]; then   # if xfce4-session is running, assume Xfce
        color-echo 'DE' 'Xfce'
    fi
}

print-distro() {
    [[ -e /etc/os-release ]] && source /etc/os-release
    if [ -n "$PRETTY_NAME" ]; then
        color-echo 'OS' "$PRETTY_NAME"
    else
        color-echo 'OS' "not found"
    fi
}

print-colors() {
    NAMES=('black' 'red' 'green' 'yellow' 'blue' 'magenta' 'cyan' 'white')
    for f in $(seq 0 7); do
        echo -en "\033[m\033[$(($f+30))m ${NAMES[$f]} " # normal colors
    done
    echo	
    for f in $(seq 0 7); do
        echo -en "\033[m\033[1;$(($f+30))m ${NAMES[$f]} " # bold colors
    done
    echo -e "$rst\n"
}

echo -e '\n'$prp$USER'@'$HOSTNAME$rst'\n'   # print user and host name
print-distro
print-uptime
print-shell
print-de
print-wm
print-disk
print-mem
print-kernel
print-cpu
echo
print-colors

rm $TMP     # delete temp file

Courtesy of Pidsley.

[bones]

^Nice, thanks. I'll probably modify to omit the colors, I'm just not finding myself in "interior designer" mode like the rest of you girls. ;) *smooch*

[pidsley]

There is a slightly more recent version (minus the temp file and plus all the window managers) here: https://github.com/pidsley/codemangler

[bones]

^Thanks, pids!

[bones]

With some modifications, I've got the env-info script going on my slackbox here at work. I had to modify the following:

Code: Select all

print-mem() {
    # field 2 on line 2 is total, field 3 on line 3 is used
    mem=$(free -h | awk 'NR==2 {total=$2} NR==3 {used=$3; print used" / "total}')
    color-echo 'Mem' "$mem"

To read instead:

Code: Select all

print-mem() {
    # field 2 on line 2 is total, field 3 on line 3 is used
    mem=$(free -m | awk 'NR==2 {total=$2} NR==3 {used=$3; print used" / "total}')
    color-echo 'Mem' "$mem"

To get it to work properly in Slackware. Also commented out "print colors" per Pidsley's instructions, to get rid of the color info.

Screenshot or it didn't happen.

Edit: Mem line still needs tweaking, not displaying RAM (M or G) at all.

[rhowaldt]

hmm, different version of 'mem' on Slackware? the same problem might be with the RAM display?

[wuxmedia]

it's seemingly using 'free', try 'free -mh' that appends a 'G' or 'M' to the end, awk should pick up the whole field.
or do you mean it's not the right numbers?

oh, how come free -h didn't work?
it's not a solaris/freebsd/windows version or something wacky?

[bones]

Here's what it looked like prior to my change:

I will try your suggestion, wux.

[bones]

Ok, wux's didn't work, but pid's did:

mem=$(free -m | awk 'NR==2 {total=$2} NR==3 {used=$3; print used"M / "total"M"}')

[pidsley]

Apparently not all distros support "free -h" -- just all the ones I tested. :(

"free -m" works (and it's actually what I was using a few versions ago, before I decided "free -h" was prettier). /closed :)

[rhowaldt]

just one little thing, and you can call me an OCD-motherfucker. but free -V will show you the version of 'free' so we can determine whether it is actually just a different one... i'm curious as to whether Slackware has an older or newer version or something else is going on here.

Code: Select all

[23:40:47]$ free -V
free from procps-ng 3.3.4

[pidsley]

all the distros I tested have free from the procps-ng package

3.3.8 in sid
3.3.3 in Wheezy
3.3.8 in Arch
3.3.8 in LFS
3.3.8 in CRUX

This page says procps-ng is a fork of procps, so maybe(probably) Slack has original procps?
https://sourceforge.net/projects/procps-ng/

[bones]

Indeed:

Code: Select all

procps version 3.2.8

Of course Slackware would be kickin' it old school. ;)

[machinebacon]

I can confirm that -h (human-readable it is called, I think) has not worked a few versions ago, when I was still with aptosid, for sure. Guess we have the awk/mawk/gawk situation here, too.

[pidsley]

Ok then. Anyone who has this problem can use

mem=$(free -m | awk 'NR==2 {total=$2} NR==3 {used=$3; print used"M / "total"M"}')

I probably won't change the script on github. But I might. :)