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28 lines
530 B
Plaintext
28 lines
530 B
Plaintext
# To implement a for loop:
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for file in *;
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do
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echo $file found;
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done
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# To implement a case command:
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case "$1"
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in
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0) echo "zero found";;
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1) echo "one found";;
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2) echo "two found";;
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3*) echo "something beginning with 3 found";;
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esac
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# Turn on debugging:
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set -x
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# Turn off debugging:
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set +x
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# Retrieve N-th piped command exit status
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printf 'foo' | fgrep 'foo' | sed 's/foo/bar/'
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echo ${PIPESTATUS[0]} # replace 0 with N
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# Lock file:
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( set -o noclobber; echo > my.lock ) || echo 'Failed to create lock file'
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