codejake

PS1> Get-Content foo.txt
dog
cat
bird
fish
chicken
duck
giraffe

PS1> Get-Content foo.txt | %{$_ -replace "duck", "fruit"}

codejake

PS> cat .\pets.txt
dog,bowser,5
cat,mimi,4
snake,mr slithers,18

PS> get-content "pets.txt" | foreach-object {
  $data = $_ -split ","
  "{1} is a {0} who is {2} years old" -f $data[0],$data[1],$data[2]
}

codejake

$ python
Python 3.7.2 (default, Dec 27 2018, 07:35:06)
[Clang 10.0.0 (clang-1000.11.45.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> def hello(fruit_basket):
...     for i in fruit_basket:
...         print(f"-- {i}")
...
>>> stuff = ( "apple", "carrot", "hamster")

codejake

# These

$ FOO="abc123"

$ echo $FOO
abc123

# Get the variable length in chars: ${#FOO}
$ echo ${#FOO}
6

codejake

# 1.) There is not try/catch in bash, but you can use the || and && operands as semi-equivalents.

# Think of || as "or".
# If command1 fails, then run command2:
$ command1 || command2

# Think of && as "and".
# If command1 succeeds, then run command2:
$ command1 && command2

codejake

#!/bin/bash

export BU_DEST=${HOME}/data
export BU_DEST_USER=${BU_DEST}/${USER}
export LOGFILE=BU_DEST_USER/test.log

# If desired, clear the log file with >.
echo "" > ${LOGFILE}

# Append a log entry with the date/time to our log with >>

codejake

function prompt {
    $currentUser = $env:USERNAME.ToLower()
    $currentDirectory = get-location
 
    $computerName = $env:COMPUTERNAME.ToLower()
    Write-Host ""
    Write-Host "[" -NoNewLine
    Write-Host "${currentDirectory}" -ForegroundColor Yellow -NoNewLine
    Write-Host "] on " -NoNewLine
    Write-Host "${computerName} " -ForegroundColor Cyan -NoNewLine

codejake

#!/bin/bash

# unshare-all.sh
# Unshare all the printers on a macOS system.
# Jake Shaw
#
# version: 19.10.8.1

# One-liner version
# lpstat -p | awk '{ print $2 }' | while read printer; do lpadmin -p "$printer" -o printer-is-shared=false;done

codejake

! Create an Ether-channel
interface Port-Channel 1
  switchport trunk encapsulation dot1q
  switchport mode trunk
  logging event bundle-status
  logging event trunk-status


! Configure and add a port to the Ether-channel
int Gi0/13

codejake

# We don't need no steenkin' PS libraries to Slack!
$results = Get-DhcpServerv4ScopeStatistics -ComputerName my_dhcp_server_fqdn | where {$_.PercentageInUse -gt 70} | select -property scopeid,percentageinuse

ForEach ($subnet in $results) {
    $payload = @{
        text="Warning: DHCP subnet " + $subnet.ScopeId + " is " + [math]::Round($subnet.percentageinuse) +"% full."
    }

    $json = $payload | ConvertTo-Json
    $response = Invoke-RestMethod 'https://hooks.slack.com/services/T0AXXXXX/B01XXXXXXKF/uklXXXXXYYYYsb' -Method Post -Body $json -ContentType 'application/json'