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askiiart 2023-08-23 21:25:23 -05:00
commit 879d78e782
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2 changed files with 12 additions and 3 deletions

11
random-bash.md Normal file → Executable file
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@ -49,9 +49,18 @@ echo "Package manager: ${PM}"
This exits with and error message if it's run as root.
```bash
#!/bin/bash
#!/usr/bin/env bash
if [ $(whoami) != "root" ]; then
>&2 echo Rerun as non-root user
exit 1
fi
```
## Output to stderr
```bash
#!/usr/bin/env bash
# Put `>&2` at beginning or end of line to output to stderr
>&2 echo "This goes to stderr"
echo "This goes to stdout"
```

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@ -1,5 +1,5 @@
#!/bin/bash
command_exists() { type "$1" &> /dev/null; }
#!/usr/bin/env bash
type "$1" &> /dev/null; }
if command_exists "apt-get"; then
PM="apt-get"