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γΣϧͰ܁Γฦ͠ॲཧ
USP༑ͷձ @papiron
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܁Γฦ͠ॲཧ
• ίϯϐϡʔλͷಘҙٕ
• σʔλॲཧͷجຊ
• ϓϩάϥϛϯάݴޠʹඞͣࡌ
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܁Γฦ͠ॲཧ
• γΣϧεΫϦϓτͰʁ
• ϫϯϥΠφʔͰʁ
• ϑΟϧλͱʁ
• ߴॲཧ͢Δʹʁ
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͓
ӈͷΑ͏ͳ
࿈ଓ͢ΔจࣈྻΛ
ग़ྗΛ͢Δํ๏Λ
ߟ͑ͯΈΔ
༽͕1ඖ
༽͕2ඖ
ɾɾ
ɾɾ
༽͕99ඖ
༽͕100ඖ
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੍ޚߏΛ͏(1)
$ n=1;while [ $n -le 100 ]; do echo '羊
が'$n'匹'; n=`expr $n + 1`; done
羊が1匹
羊が2匹
..
..
羊が99匹
羊が100匹
γΣϧͰ੍ޚߏ͕͑Δ
whileϧʔϓͰ܁Γฦ͠ॲཧ
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੍ޚߏΛ͏(1)
#!/bin/sh
n=1
while [ $n -le 100 ]
do
echo '羊が'$n'匹'
n=`expr $n + 1`
done
ϫϯϥΠφͰݟʹ͍͘ͷͰ
γΣϧεΫϦϓτͰهࡌ
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ྻσʔλ࡞ͷํ๏
$ seq 1 100
1
2
..
100
bashͷϒϨʔεల։
Λ͏
$ echo {1..100}
1 2 3 .. 99 100
seqίϚϯυΛ͏
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੍ޚߏΛ͏(2)
$ for n in `seq 100`; do echo '羊が'$n'匹';
done
$ for n in {1..100} ; do echo '羊が'$n'匹';
done
1͔Β100ͷྻΛ४උ
܁Γฦ͠ॲཧforϧʔϓΛ༻
`seq 100`γΣϧͷίϚϯυஔػೳ
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੍ޚߏΛ͏(2)
#!/bin/sh
for n in `seq 100`
do
echo '羊が'$n'匹'
done
ϫϯϥΠφͰݟʹ͍͘ͷͰ
γΣϧεΫϦϓτͰهࡌ
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੍ޚߏΛ͏(3)
$ seq 100 | while read n; do echo '羊が'$n'匹';
done
1͔Β100ͷྻΛ४උ
܁Γฦ͠ॲཧͷwhileϧʔϓʹύΠϓଓ
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੍ޚߏΛ͏(3)
#!/bin/sh
seq 100 |\
while read n
do
echo '羊が'$n'匹'
done
ϫϯϥΠφͰݟʹ͍͘ͷͰ
γΣϧεΫϦϓτͰهࡌ
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xargsΛ͏(1)
$ seq 100 | xargs printf '羊が%d匹\n'
1͔Β100ͷྻΛ४උ
xargsʹύΠϓଓͯ͠printfίϚϯυ
printf '羊が%d匹' 1 2 3 4 .. 99 100
࣮࣭ԼهͷίϚϯυ͕࣮ߦ
܁Γฦ࣮͠ߦ͕ແ͍ͨΊߴॲཧ͕ظ
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xargsΛ͏(2)
$ seq 100 | xargs -I@ echo '羊が@匹'
1͔Β100ͷྻΛ४උ
xargsͷ-IΦϓγϣϯΛར༻
echo '羊が1匹'
echo '羊が2匹'
..
echo '羊が100匹'
࣮࣭ӈهͷίϚϯυ͕
࣮ߦ͞Ε͍ͯΔ
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γΣϧʹίϚϯυྻΛ
$ seq -f 'echo 羊が%g匹' 100 | sh
ԼهͷΑ͏ͳίϚϯυྻΛ࡞
γΣϧʹύΠϓͰ࣮ͯ͠ߦ
echo 羊が1匹
echo 羊が2匹
..
echo 羊が99匹
echo 羊が100匹
ύΠϓ γΣϧ
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ϑΟϧλίϚϯυͰ
$ seq 100 | sed 's/^/羊が/' | sed 's/$/匹/'
1͔Β100ͷྻΛ४උ
ύΠϓͰsedʹͯ͠ॲཧ
sed͕ϑΟϧλͱͯ͠ಈ࡞
ίϚϯυͷ܁Γฦ࣮͠ߦ͕ແ͍ͨΊ
ߴͳॲཧ͕ظग़དྷΔ
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܁Γฦ͠ॲཧͷߟ͑ํ
• ॲཧ͍ͨ͠σʔλϦετΛ४උ
• 1ߦ1ϨίʔυͳςΩετσʔλ
• σʔλϑΝΠϧ໊Ұཡ
• ίϚϯυͷग़ྗ
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܁Γฦ͠ॲཧͷߟ͑ํ
• ॲཧ͢ΔίϚϯυͷσβΠϯ
• ϑΟϧλͱͯ͠ಈ࡞͢Δ͔ʁ
• GNU dateΦϓγϣϯͰϑΟϧλಈ࡞
• ෳͷҾ͕ࢦఆग़དྷΔ͔ʁ
• lsίϚϯυɺfileίϚϯυͳͲ
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܁Γฦ͠ॲཧͷߟ͑ํ
• ϑΟϧλͱͯ͠ಈ࡞͢Δ
• ͜Ε͕ग़དྷΕཧత
• ύΠϓͰߴॲཧͷՄೳੑ
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܁Γฦ͠ॲཧͷߟ͑ํ
• ෳͷҾ͕ࢦఆग़དྷΔ
• xargsͷར༻Λݕ౼͢Δ
• xargsҾ͕͗ͯ͢େৎ
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܁Γฦ͠ॲཧͷߟ͑ํ
• ϑΟϧλෳҾμϝ
• ੍ޚߏΛߟ͑Δ
• xargsͷ-n-IΦϓγϣϯͷར༻Λߟ͑Δ