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echo foo
echo foo
</source>
</source>
== Redirections ==
=== stdout 2 file ===
ls -l > ls-l.txt
=== stderr 2 file ===
grep da * 2> grep-errors.txt
=== stdout 2 stderr ===
grep da * 1>&2
=== stderr 2 stdout ===
grep * 2>&1
=== stderr and stdout 2 file ===
rm -f $(find / -name core) &> /dev/null
== extras ==
== extras ==
=== Check if a package is installed ===
=== Check if a package is installed ===