mirror of https://github.com/tLDP/LDP
20 lines
686 B
Bash
20 lines
686 B
Bash
#!/bin/bash
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# rot13a.sh: Same as "rot13.sh" script, but writes output to "secure" file.
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# Usage: ./rot13a.sh filename
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# or ./rot13a.sh <filename
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# or ./rot13a.sh and supply keyboard input (stdin)
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umask 177 # File creation mask.
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# Files created by this script
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#+ will have 600 permissions.
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OUTFILE=decrypted.txt # Results output to file "decrypted.txt"
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#+ which can only be read/written
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# by invoker of script (or root).
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cat "$@" | tr 'a-zA-Z' 'n-za-mN-ZA-M' > $OUTFILE
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# ^^ Input from stdin or a file. ^^^^^^^^^^ Output redirected to file.
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exit 0
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