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awk basics
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yammerjp
May 22, 2023
Programming
1
630
awk basics
awkの使い方を紹介します。
競プロもくもくわいわい会 2023/05/22
yammerjp
May 22, 2023
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Transcript
தࢁܚ༞ Μ·ʔ BXLCBTJDT ڝϓϩ͘͘Θ͍Θ͍ձ
தࢁܚ༞ w ৬ۀ8FCΞϓϦέʔγϣϯ ΤϯδχΞ ʙ w झຯEPU fi MFTͷཧ
w झຯBXLΛॻ͘͜ͱ w 5XJUUFS(JU)VCZBNNFSKQ Μ·ʔ
BXL ςΩετॲཧʹಛԽͨ͠ϓϩάϥϛϯάݴޠ
BXL ඪ४ೖྗΛѻ͏ͷ͕ಘҙ
BXL ڝٕϓϩάϥϛϯάΓ͍͢
࣮༻తͳBXLͷ͍ํ
ྫBQBDIFͷΞΫηεϩά͔Β*1ΞυϨεΛൈ͖ग़͢ ʜۭന۠Γͷ൪ͷϑΟʔϧυ
ྫBQBDIFͷΞΫηεϩά͔Β*1ΞυϨεΛൈ͖ग़͢ ʜۭന۠Γͷ൪ͷϑΟʔϧυ cat access.log | awk ‘{ print $1
}’ | head -3 ʜۭന۠Γͷ൪ͷϑΟʔϧυ
BXLͷϢʔεέʔεͷҎ্͜Ε ӕͩͱࢥͬͨ͋ͳͨɺ4MBDLΛʮBXLʯͰݕࡧͯ͠ΈΔͱ͍͍Ͱ͢
BXLͷॻ͖ํ
جຊจ๏ ɹɹɹɹɹɹɹɹɹύλʔϯ\ΞΫγϣϯ^ ɾύλʔϯ͕Ұக͢ΔߦʹɺΞΫγϣϯΛ࣮ߦ ɾύλʔϯΛলུ͢Δʜਅ શߦʹΞΫγϣϯΛద༻ ɾΞΫγϣϯΛলུ͢Δʜ\QSJOU^ ߦશମΛग़ྗ
ಛघͳม ඪ४ೖྗͷߦશମ ʜۭന۠ΓͷO൪ͷϑΟʔϧυ /'ϑΟʔϧυ /3ݱࡏͷߦ൪߸
<4FQ >(&5XQ DBU)551ʜུ <4FQ >(&5TDSJQUJOHKBWBIUNMʜུ <4FQ >(&5XQ TSBTQCFSSZ Qʜུ
/' /3 ಛघͳม
<4FQ >(&5XQ DBU)551ʜུ <4FQ >(&5TDSJQUJOHKBWBIUNMʜུ <4FQ >(&5XQ TSBTQCFSSZ Qʜུ
/' /3 ಛघͳม
<4FQ >(&5XQ DBU)551ʜུ <4FQ >(&5TDSJQUJOHKBWBIUNMʜུ <4FQ >(&5XQ TSBTQCFSSZ Qʜུ
/' /3 ಛघͳม
ྫߦͷ*1ΞυϨεΛग़ྗ NR==33 { print $1 }
ྫ֤ߦͷۮྻͷϑΟʔϧυΛग़ྗ { for(i=1; i<=NF; i++) { if(i%2==0) {
if(i!=1) { printf(“ “) } printf(“%s”, $i) } } printf(“\n”) } IUUQTHJTUHJUIVCDPNZBNNFSKQEECBBFGCEFDEB
ྫ"#$ $0=$(gsub(_,FS)/2) ɾʮʹೖ͢Δʯͱ͍͏ύλʔϯ㱺ਅ ɾਅͳͷͰɺΛग़ྗ ˠʮQSJOUʯͱॻ͘ͱ͜ΖΛɺʮʯͱॻ͍ͯจࣈઅ IUUQTHJTUHJUIVCDPNZBNNFSKQDEBCFCGEDG
εϥΠυதͷBDDFTTMPHɺॻ੶ʮϚελϦϯά-JOVYγΣϧεΫϦϓτʯͷαϯϓϧίʔυΛ༻͍ͯ͠·͢ IUUQTHJUIVCDPNPSFJMMZKBQBONBTUFSJOHMJOVYTIFMMTDSJQUJOHFKBCMPCNBJODIBDDFTTMPH
BXLΛͨͷ͠͏