CompTIA Linux+ Powered by LPI 1 Set 2

It enables color to highlight matching parts. ✘ It only outputs non-matching lines. ✘ It shows the command's version information. ✘ It changes the output order showing the last matching line first. ✔

Match the preceding qualifier one or more times. ✘ Match the preceding qualifier zero or more times. ✘ Match the preceding qualifier zero or one times. ✘ Match a literal ? character. ✔

By using the command :repeat followed by the number and the command. ✘ By specifying the number right in front of a command such as 4l or 2yj. ✘ By selecting all affected lines using the shift and cursor keys before applying the command. ✘ By issuing a command such as :set repetition=4 which repeats every subsequent command 4 times. ✔

gzip archive.tgz | tar xvf - ✘ tar ztf archive.tgz ✘ gzip -d archive.tgz | tar tvf - ✘ tar cf archive.tgz ✔

grep '/$' foo

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grep '/#' foo

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grep -v '/$' foo

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grep -v '/#' foo

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history ✘ set ✘ bashconf ✘ setsh ✔ envsetup ✔

sed '/bob/Bob' letter > newletter ✘ sed s/bob/Bob/ letter < newletter ✘ sed 's/bob/Bob' letter > newletter ✘ sed 's/bob/Bob/g' letter > newletter ✔ sed 's/bob, Bob/' letter > newletter ✔

& ✘ bg ✘ cont ✘ exec ✔ :& ✔

2>&1 >filename

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>filename 2>&1

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1>&2>filename

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>>filename

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1&2>filename

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-10 ✘ 10 ✘ 20 ✔