ryran

#!/bin/bash

function mll {
  local inputfile search_cmd
  # If directory, assume sosreport and look for multipath output
  if [[ -d $1 ]]; then
    inputfile=$1/sos_commands/devicemapper/multipath_-v4_-ll
    [[ -r $inputfile ]] || { echo -e "'$inputfile' unreadable\nRun with no args to see usage"; return 2; }
  elif [[ -f $1 && -r $1 ]]; then
    inputfile=$1

ryran

#!/bin/bash

# 'Loop' command 
# I use this mostly for when machines are booting up and I don't want to
# keep manually trying to ssh over to them
function L {
  local interval
  if [[ $# -eq 0 || $1 = --help || $1 = -h || $1 = -\? ]]; then
    echo "Usage: L [-N] COMMAND"
    echo "Runs COMMAND [waiting N sec between failed attempts] until it succeeds"

ryran

#!/bin/bash
# Takes the pid of a dd process as an argument and loop-updates the status until it finishes
function ddinfo {
  kill -USR1 $1
  while :; do
    kill -0 $1 && { sleep 1m; kill -USR1 $1; } || { echo "DONE"; break; }
  done
}

ryran

#!/bin/bash

# Simply prints non-127 ip addresses
function myips {
  echo "$(hostname) IP addrs:" >&2
  ip a | awk '/inet / {if ($2 !~ /^127/) print " "$2}'
}

ryran

#!/bin/bash
# Run with the first argument as the path to the root of an extracted sosreport
function Distro {
  ls -l "$1"/etc/*-release; echo
  cat "$1"/etc/redhat-release; echo
  grep --color=no ^serverURL= "$1"/etc/sysconfig/rhn/up2date; echo
  egrep -i 'fedora|centos|oracle|enterprise|uek|suse|nv[0-9]' "$1"/installed-rpms
}

ryran

#!/bin/bash
# Uses pgrep, ps, and awk to sum the RSS & VSZ of any process names or PIDs passed to it
function memsum {
  if [[ -z $1 ]]; then
    echo "memsum: requires at least one PID or [partial] process name"
    return 1
  fi
  local pid p
  until [[ -z $1 ]]; do
    if [[ $1 =~ ^[0-9]+$ ]]; then

ryran

#!/bin/bash
# Currently, I only have used this on RH/Fedora-based systems, so....
# The way *I* use this: I put the function into /etc/profile.d/reusessh.sh
# or something like that, and then call it from each user's ~/.bash_profile

# Reuse SSH Agent -- handles a per-user system-wide reusable ssh-agent
# This just sets up a function; you still need to call it from ~/.bash_profile
# (or simply run on demand, as a replacement for running 'ssh-agent bash')

function ssh_agent_systemwide

ryran

#!/bin/bash
# (To change mtime instead of atime, switch the -a to -m)

atime_change_1month_ago()
{
  if [[ -e $1 ]]; then
    month=`date +%m`
    [ `echo $month|cut -c1` -eq 0 ] && month=`echo $month|cut -c2`
    month=$((month - 1))
    [ `expr length $month` -eq 1 ] && month="0$month"

ryran

#!/bin/bash

# Start Zenity (might not be installed by default) as a bash coprocess
coproc zenity --progress --pulsate --title='Testing' --text='Starting up...'
z1=${COPROC[1]}

# Update Zenity...
sleep 2s
echo 33 >&$z1
echo '#One third done...' >&$z1

ryran

#include <fcntl.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

int main(int argc, char **argv)
{
    // The following line expects the socket path to be first argument