など。もとは、ファイルを8進数などの形式にダンプするやつ。
od -c data_cr.csv | tail -5 0000640 212 237 " , " 346 265 267 344 270 212 350 255 267 350 241 0000660 233 344 273 273 345 213 231 " , " 3 4 5 " , " 0000700 3 4 5 " , " 3 4 " , " 3 4 " , " 0000720 0 " , " 0 " , " 0 " \r
どちらかというと、cat -eよりも文字コードの確認はしやすい。
cat -e data_cr.csv | tail -5 "M-fM-^WM-%M-dM-;M-^X","M-gM-5M-^PM-fM-^^M-^\","M-iM-^AM- M-eM->M-^A","M-gM-^GM-^CM-fM-^VM-^Y","M-eM-<M->M-hM-^VM-,","M-iM-^KM-<M-fM-^]M-^P","M-cM-^CM-^\M-cM-^CM-<M-cM-^BM--","M-iM-^VM-^KM-gM-^YM-:M-hM-3M-^GM-fM-^]M-^P","M-iM-+M-^XM-iM-^@M-^_M-dM-?M-.M-eM->M-)M-fM-^]M-^P","M-iM-+M-^XM-iM-^@M-^_M-eM-;M-:M-iM-^@M- M-fM-^]M-^P"^M"2014-12-14 08:04:36","M-eM-$M-'M-fM-^HM-^PM-eM-^JM-^_","M-fM-0M-4M-dM-8M-^JM-fM-)M-^_M-eM-^_M-:M-eM-^\M-0M-eM-;M-:M-hM-(M--^Mtest","828","0","345","345","0","1","0"^M"2014-12-14 08:19:08","M-fM-^HM-^PM-eM-^JM-^_","M-iM-^UM-7M-hM-7M-^]M-iM-^[M-"M-gM-7M-4M-gM-?M-^RM-hM-^HM-*M-fM-5M-7","0","100","30","0","0","0","0"^M"2014-12-15 22:55:59","M-fM-^HM-^PM-eM-^JM-^_","M-iM-^UM-7M-hM-7M-^]M-iM-^[M-"M-gM-7M-4M-gM-?M-^RM-hM-^HM-*M-fM-5M-7","0","100","30","0","0","1","0"^M"2014-12-15 22:56:09","M-eM-$M-'M-fM-^HM-^PM-eM-^JM-^_","M-fM-5M-7M-dM-8M-^JM-hM--M-7M-hM-!M-^[M-dM-;M-;M-eM-^KM-^Y","345","345","34","34","0","0","0"^M
