https://github.com/cezarypiatek/bashvspowershell
Cheatsheet with syntax comparison between Bash and Powershell
https://github.com/cezarypiatek/bashvspowershell
Last synced: 7 months ago
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Cheatsheet with syntax comparison between Bash and Powershell
- Host: GitHub
- URL: https://github.com/cezarypiatek/bashvspowershell
- Owner: cezarypiatek
- Created: 2019-09-21T16:04:35.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2019-09-23T05:11:45.000Z (about 6 years ago)
- Last Synced: 2025-01-17T05:43:44.413Z (9 months ago)
- Size: 3.91 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Bash vs PowerShell
Cheatsheet with syntax comparison between Bash and Powershell
## Conditions
### Bash
```bash
if condition ; then
# Do something
elif other_condition ; then
# Do something
else
# Do something
fi
```
### PowerShell
```powershell
if(condition)
{
# Do something
}
elseif(other_condition)
{
# Do something
}
else
{
# Do something
}
```
## Checking if string is empty
### Bash
```bash
[[ -z "$str" ]] #True if length of string is zero
[[ -n "$str" ]] #True if length of string is non-zero
```
### PowerShell
```powershell
[string]::IsNullOrEmpty($stringVariable) #True if string is null or empty
-not [string]::IsNullOrEmpty($stringVariable) #True if string is not null and not empty
```
## Checking if path exists
### Bash
```bash
[[ -e "$path" ]] #Returns true if the path exists.
[[ -f "$path" ]] #Returns true if the path exists and is a regular file
[[ -d "$path" ]] #Returns true if the path exists and is a directory
```
### PowerShell
```powershell
Test-Path $path #Returns true if the path exists.
Test-Path $path -PathType Leaf #Returns true if the path exists and is a regular file
Test-Path $path -PathType Container #Returns true if the path exists and is a directory
```
## Get the length of the variable
### Bash
```bash
${#string_variable} # Length of the string variable
${#array_variable[@]} # Length of the array
```
### PowerShell
```powershell
$string_variable.length # Length of the string variable
$array_variable.length # Length of the array
```
## Replace a part of the string
### Bash
```bash
"${string_variable/what_replace/replace_with}"
```
### PowerShell
```powershell
$string_variable -replace "what_replace","replace_with"
```
## For loop
### Bash
```bash
for (( i=1; i<=10; i++ )); do
# do something
done
```
### PowerShell
```powershell
for($i=0; $i -lt 10; $i++)
{
# do something
}
```
## Foreach loop
### Bash
```bash
for element in "${array[@]}"; do
# do something
done
```
### PowerShell
```powershell
foreach($element in $array)
{
# do something
}
```
## Case statement
### Bash
```bash
case $var in
1)
# do something
;;
2)
# do something
;;
*)
# do something for default case
;;
esac
```
### PowerShell
```powershell
switch ($var) {
1 {
# do something
break
}
2 {
# do something
break
}
default {
# do something for default case
break
}
}
```