Add new file

bar2.sh

@@ -0,0 +1,112 @@
+#!/usr/bin/env bash 
+
+#############################################################################
+###########################################################################
+###
+### Modified/Rewritten by A.M.Danischewski (c) 2015 v1.1
+### Issues: If you find any issues emai1 me at my <first name> dot 
+###         <my last name> at gmail dot com.  
+###
+### Based on scripts posted by Pez Cuckow, William Pursell at:  
+### http://stackoverflow.com/questions/12498304/using-bash-to-display-\
+###      a-progress-working-indicator
+###
+### This program runs a program passed in and outputs a timing of the 
+### command and it exec's a new fd for stdout so you can assign a 
+### variable the output of what was being run. 
+### 
+### This is a very new rough draft but could be expanded. 
+### 
+### This program is free software: you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation, either version 3 of the License, or
+### (at your option) any later version.
+###
+### This program is distributed in the hope that it will be useful,
+### but WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with this program.  If not, see <http://www.gnu.org/licenses/>.
+###########################################################################
+#############################################################################
+
+declare    CMD="${1}"
+shift      ## Clip the first value of the $@, the rest are the options. 
+declare    CMD_OPTIONS="$@"
+declare    CMD_OUTPUT=""
+declare    TMP_OUTPUT="/tmp/_${0##*/}_$$_$(date +%Y%m%d%H%M%S%N)" 
+declare -r SPIN_DELAY="0.1"
+declare -i PID=
+
+function usage() {
+cat <<EOF
+
+Description: ${0##*/}
+
+This program runs a program passed in and outputs a timing of the 
+command and it exec's a new fd for stdout so you can assign a variable 
+the output of what was being run. 
+
+Usage: ${0##*/} <command> [command options]
+
+ E.g.  
+    >$ ${0##*/} sleep 5 \&\& echo "hello" \| figlet
+     Running: sleep 5 && echo hello | figlet, PID 2587:/
+
+     real   0m5.003s
+     user   0m0.000s
+     sys    0m0.002s
+      _          _ _       
+     | |__   ___| | | ___  
+     | '_ \ / _ \ | |/ _ \ 
+     | | | |  __/ | | (_) |
+     |_| |_|\___|_|_|\___/ 
+
+     Done..
+    >$ var=\$(${0##*/} sleep 5 \&\& echo hi)
+     Running: sleep 5 && echo hi, PID 32229:-
+     real   0m5.003s
+     user   0m0.000s
+     sys    0m0.001s
+     Done..
+     >$ echo \$var
+     hi
+
+EOF
+} 
+
+function spin_wait() { 
+ local -a spin 
+ spin[0]="-"
+ spin[1]="\\"
+ spin[2]="|"
+ spin[3]="/"
+ echo -en "Running: ${CMD} ${CMD_OPTIONS}, PID ${PID}: " >&3
+ while kill -0 ${PID} 2>/dev/random; do
+   for i in "${spin[@]}"; do
+     echo -ne "\b$i" >&3
+     sleep ${SPIN_DELAY}
+   done
+ done
+} 
+
+function run_cmd() { 
+ exec 3>$(tty)
+ eval "time ${CMD} ${CMD_OPTIONS}" 2>>"${TMP_OUTPUT}" | tee "${TMP_OUTPUT}" & 
+ PID=$! # Set global PID to process id of the command we just ran. 
+ spin_wait
+ echo -en "\n$(< "${TMP_OUTPUT}")\n" >&3 
+ echo -en "Done..\n" >&3
+ rm "${TMP_OUTPUT}"
+ exec 3>&-
+} 
+
+if [[ -z "${CMD}" || "${CMD}" =~ ^-. ]]; then 
+ usage | more && exit 0 
+else 
+ run_cmd  
+fi 
+
+exit 0