Page Comparison

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utility	default delimiter	how to change	example
cut	tab	-d or --delimiter option	`cut -d ':' -f 1 /etc/passwd`
sort	whitespace (one ore more spaces or Tabs)	-t or --field-separator option	`sort -t ':' -k1,1 /etc/passwd`
awk	whitespace (one ore more spaces or Tabs) Note: some older versions of awk do not treat Tabs as field separators.	FS (input field separator) and/or OFS (*output field separator) variable in BEGIN{ }* block -F or --field-separator option	`cat sampleinfo.txt \| awk 'BEGIN{ FS=OFS="\t" }` `{print $1,$3}'` `cat /etc/passwd \| awk -F ":" '{print $1}'`
join	one or more spaces	-t option	`join -t $'\t' -j 2 file1 file12`
perl	whitespace (one ore more spaces or Tabs) when auto-splitting input with -a	-F'/<pattern>/' option	`cat sampleinfo.txt \| perl -F'/\t/' -a -n -e 'print "$F[0]\t$F[2]\n";'`
read	whitespace (one ore or more spaces or tabs)	IFS= option	see example above Note that a bare IFS= removes any field separator, so whole lines are read each loop iteration.

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