用sed去遍歷文本文件碰到錯(cuò)誤

HSRLJYHCY

au11qap6j0tels2:KCU005P:/ora/admin#cat DF_list.txt
/ora/DB01/data001/KCU001P/KCU001Pcust_cdr_unbilled_tbl_01.dbf
/ora/DB01/data002/KCU001P/KCU001Pcust_cdr_unbilled_tbl_02.dbf
/ora/DB01/data003/KCU001P/KCU001Pcust_cdr_unbilled_tbl_03.dbf
/ora/DB01/data004/KCU001P/KCU001Pcust_cdr_unbilled_idx_01.dbf
/ora/DB01/data004/KCU001P/KCU001Pcust_cdr_unbilled_idx_02.dbf



au11qap6j0tels2:KCU005P:/ora/admin#cat mytest.sh
#!/bin/ksh
file_count=`sed -n '$=' DF_list.txt`
i=1
while(($i<=$file_count))
do
    sed -n '$ip' DF_list.txt
    i=$(($i+1))
done

(上面的這個(gè)簡(jiǎn)單腳本是想先獲得文本文件的行數(shù)，然后從第一行到最后一行顯示出來)

au11qap6j0tels2:KCU005P:/ora/admin#./mytest.sh
sed: command garbled: $ip
sed: command garbled: $ip
sed: command garbled: $ip
sed: command garbled: $ip
sed: command garbled: $ip

執(zhí)行腳本獲得上面的錯(cuò)誤，請(qǐng)高手幫忙

wiliiwin

回復(fù) 1# HSRLJYHCY

1. sed -n '$ip' DF_list.txt

復(fù)制代碼

這里改成

1. sed -n '‘$ip’' DF_list.txt

復(fù)制代碼

或者

1. sed -n "${i}p" DF_list.txt

復(fù)制代碼

yestreenstars

回復(fù) 2# zooyo

換了個(gè)頭像，差點(diǎn)不認(rèn)識(shí)了~{:3_182:}
   

yestreenstars

回復(fù) 5# zooyo

呀，又一朵鮮花……{:3_193:}
   

HSRLJYHCY

To wiliiwin,

謝了,用 sed -n "${i}p" DF_list.txt能正常遍歷

kaede_1

回復(fù) 7# HSRLJYHCY


    樓主，方便給解釋以下sed命令中'$='嗎？

wiliiwin

回復(fù) 8# kaede_1
返回文件行數(shù)


   

李滿滿

學(xué)生黨:無(wú)聊~ python試試~

1. 
   
2. $ cat yhsafe.py
   
3. #!/usr/bin/env python
   
4. # -*- coding: gbk -*-
   
5. "just for fun ~ so so"
   
6. 
   
7. from sys import argv
   
8. 
   
9. for k,v in enumerate(open(argv[1]).readlines()):
   
10.         print k+1,v,
    

復(fù)制代碼

$ ./yhsafe.py yhsafe.txt
1 /ora/DB01/data001/KCU001P/KCU001Pcust_cdr_unbilled_tbl_01.dbf
2 /ora/DB01/data002/KCU001P/KCU001Pcust_cdr_unbilled_tbl_02.dbf
3 /ora/DB01/data003/KCU001P/KCU001Pcust_cdr_unbilled_tbl_03.dbf
4 /ora/DB01/data004/KCU001P/KCU001Pcust_cdr_unbilled_idx_01.dbf
5 /ora/DB01/data004/KCU001P/KCU001Pcust_cdr_unbilled_idx_02.dbf