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常用 Text 處理指令

指令	意義
echo	將後面帶的字串於 STDOUT 印出
cat	串接檔案，輸出於STDOUT 上
less more	將檔案內的內容以一頁一頁的方式展示於STDOUT上
grep egrep fgrep	篩出符合給定字串的橫行 grep可使用Basic Regular Expressions (BREs)於字串比對 egrep可使用Extended Regular Expressions (EREs) fgrep為快速版 grep
cut paste	垂直欄位剪貼 cut 為垂直切片 paste 將給定的檔案以左右並排方式合併
sort	排序
uniq	刪除重複的橫行
tr	字元轉換
wc	計算行數、字數、字元數等
expand unexpand	expand 將 tab 改成空白 unexpand 相反操作
cmp	比較兩個檔案
iconv	從STDIN或指定檔案讀取的字元轉換為另一個編碼字集
join	將兩個檔案根據匹配的欄位合併為一個檔案
sed	一種非互動式的編輯器
awk	一種優雅且有用的程式語言，特別適合處理有欄位的資料
spell	拼字檢查
tee	將送到STDOUT的資訊複製到檔案中

Text Manipulation Commands

指令	意義
echo	Print arguments to standard output.
cat	Concatenate files.
less more	Sophisticated interactive pager programs for looking at information on a terminal, one screenful (or "page") at a time.
grep egrep fgrep	篩出符合給定字串的橫行 grep可使用Basic Regular Expressions (BREs)於字串比對 egrep可使用Extended Regular Expressions (EREs) fgrep為快速版 grep
cut paste	cut vertically paste multiple files in parallel
sort	Sort text files. specification and priority.
uniq	Remove or count duplicate lines in sorted input.
tr	A character translation program.
wc	Count lines, words, characters, and/or bytes.
expand unexpand	Converting tab into space and vice versa.
cmp	Simple file comparison program.
iconv	General-purpose character-encoding conversion tool.
join	Join matching records from multiple files.
sed	A stream editor, based on the original ed line editor's command set.
awk	An elegant and useful programming language in its own right, it is also an important component of many large shell scripts.
spell	A batch spellchecker.
tee	Copy STDIN to STDOUT and to one or more named output files.