replae a line in the shell script?

replae a line in the shell script?

Post by Dong-Gook Ki » Wed, 09 Dec 1998 04:00:00



Hello everyone,

I'd like to remove a line, and replace to other line by shell script.

Would you please notify how can i do it?

Thanks in advance,

Dong-Gook Kim.

 
 
 

replae a line in the shell script?

Post by Kevin Riole » Wed, 09 Dec 1998 04:00:00


"man sed" will get you where you're going.

> Hello everyone,

> I'd like to remove a line, and replace to other line by shell script.

> Would you please notify how can i do it?

> Thanks in advance,

> Dong-Gook Kim.


 
 
 

1. # How to read a textfile line by line using csh shell script ?

Dear *nix fellows
A "simple" question concerning file read
#!/bin/csh -f
#
# How to read a textfile line by line using csh shell script ?
# Os for example : HP-UX 10.20 or 11
#
set READTEST = readtest.txt
printf "Creating $READTEST file\n"
echo "1) ooo-557.06.7055                 rrrrrr iiiiiii prj oooooo 1
tgps#9012345" > $READTEST
echo "2) bbbbbb-sa_mcu#01.01.095_f_04.31 rrrr mmmm      prj vvvv   1
tgo#45678"    >> $READTEST
echo "3) aaa-ccccc#23402.34-50454 rrrr   vvvvvv         prj IIII   1
tg#12345"     >> $READTEST
echo "4) sssss-23401.02.010              rrrrrr hhhhhh  prj ssssss 1
tg#456465"    >> $READTEST
#
printf "Reading $READTEST file\n"
# while (`read -r xx yy < $READTESTFILE`)
set S=`line < $READTEST`
printf "$S\n"
printf "$S[2] $S[3] $S[6] $S[8]\n\n"
#
# do
# HP-UX man page example (shell sh)
#           while read -r xx yy
#           do
#                   printf "%s %s \n" "$yy" "$xx"
#           done < input_file
#
while (`read -r xx yy < $READTEST` != 0)
# do
#  printf "%s %s \n" "$yy" "$xx"
#  printf "$S\n"
   printf "Next line generates an error undefined \n"
   printf "$yy $xx\n"
# done < $READTESTFILE
end
exit
Script output
----------------
Creating readtest.txt file
Reading readtest.txt file
1) ooo-557.06.7055 rrrrrr iiiiiii prj oooooo 1 tgps#9012345
ooo-557.06.7055 rrrrrr oooooo tgps#9012345

Next line generates an error undefined
yy: Undefined variable.

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