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Old 06-11-2008
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string operation

i am new user of unix.i have a question.My script is-

export STR_ALFA=`head -2 "${FILE_PATH}"|tail -1|cut -d"," -f1`
"${TEST_HOME}"/function/chk_alfa.ksh STR_ALFA

now i want to check STR_ALFA:

1)whether is alphabetic
2)whether is numeric
3)whether is alphanumeric
-------------------------------
please provide me necessary code to check this.
please provide 4 code[/b]
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Old 06-11-2008
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