Need urgent help on a samll shell script problem!# Unix - 噫吁兮，危乎高哉
f*w
1 楼
a*a
2 楼
I got stuck for the following problem. My shell script is as follows:
for i in `sort -u file1.txt` #the small dot here is backquote
do
echo $i
done
the file1.txt consists of two sentences :
I am a boy
you are a girl
after I run the script, the output is
$ ./li.sh
I
am
a
boy
you
are
a
girl
However, I need the output like
I am a boy
you are a girl
That is , I need variable i to be assigned the value of the whole line not a
single word delimited by the space. How should I change my scri
for i in `sort -u file1.txt` #the small dot here is backquote
do
echo $i
done
the file1.txt consists of two sentences :
I am a boy
you are a girl
after I run the script, the output is
$ ./li.sh
I
am
a
boy
you
are
a
girl
However, I need the output like
I am a boy
you are a girl
That is , I need variable i to be assigned the value of the whole line not a
single word delimited by the space. How should I change my scri
o*a
3 楼
sth like this:
for i in `sort -u file1.txt` #the small dot here is backquote
do
j=`echo $j $i`
done
echo $j
【在 a*a 的大作中提到】
: I got stuck for the following problem. My shell script is as follows:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: echo $i
: done
: the file1.txt consists of two sentences :
: I am a boy
: you are a girl
: after I run the script, the output is
: $ ./li.sh
a*a
4 楼
Dear ouba, firstly thank you so much! I tried your script and the output was
]$./lii.sh
I am a boy you are a girl
so I can only bother you again and need your further help. What I want is the
variable to be assigned with the value of *each line*, say $j=I am a boy
firstly then $j =you are a girl. However, because the " echo $j" statement was
outside the loop, $j finally get the value of both lines together. Do you
have any idea? I'm pretty greenie in Unix and thanks again for your help!
ly
a
【在 o**a 的大作中提到】
:
: sth like this:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: j=`echo $j $i`
: done
: echo $j
o*a
5 楼
sorry, i thought "\n" could be passed to $i.
let me think think.
the
was
【在 a*a 的大作中提到】
:
: Dear ouba, firstly thank you so much! I tried your script and the output was
: ]$./lii.sh
: I am a boy you are a girl
: so I can only bother you again and need your further help. What I want is the
: variable to be assigned with the value of *each line*, say $j=I am a boy
: firstly then $j =you are a girl. However, because the " echo $j" statement was
: outside the loop, $j finally get the value of both lines together. Do you
: have any idea? I'm pretty greenie in Unix and thanks again for your help!
: ly
let me think think.
the
was
【在 a*a 的大作中提到】
:
: Dear ouba, firstly thank you so much! I tried your script and the output was
: ]$./lii.sh
: I am a boy you are a girl
: so I can only bother you again and need your further help. What I want is the
: variable to be assigned with the value of *each line*, say $j=I am a boy
: firstly then $j =you are a girl. However, because the " echo $j" statement was
: outside the loop, $j finally get the value of both lines together. Do you
: have any idea? I'm pretty greenie in Unix and thanks again for your help!
: ly
o*a
6 楼
but if the original file has # in it, it's replaced by blank afterwards.
dunno if there is any line-read like <> in perl.
a
o*a
7 楼
i know, it's practical but not perfect.
since anything may occur inside the input.
w*n
8 楼
add following before sort
IFS=\n
works for me
br />
【在 a*a 的大作中提到】
: I got stuck for the following problem. My shell script is as follows:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: echo $i
: done
: the file1.txt consists of two sentences :
: I am a boy
: you are a girl
: after I run the script, the output is
: $ ./li.sh
IFS=\n
works for me
br />
【在 a*a 的大作中提到】
: I got stuck for the following problem. My shell script is as follows:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: echo $i
: done
: the file1.txt consists of two sentences :
: I am a boy
: you are a girl
: after I run the script, the output is
: $ ./li.sh
l*l
9 楼
#!/bin/sh
NUM=`cat file1.txt| wc -l`
COUNT=1
while [ $COUNT -le $NUM ]
do
sort -u file1.txt | sed -n $COUNT\p
COUNT=`expr $COUNT + 1`
done
【在 a*a 的大作中提到】
: I got stuck for the following problem. My shell script is as follows:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: echo $i
: done
: the file1.txt consists of two sentences :
: I am a boy
: you are a girl
: after I run the script, the output is
: $ ./li.sh
NUM=`cat file1.txt| wc -l`
COUNT=1
while [ $COUNT -le $NUM ]
do
sort -u file1.txt | sed -n $COUNT\p
COUNT=`expr $COUNT + 1`
done
【在 a*a 的大作中提到】
: I got stuck for the following problem. My shell script is as follows:
: for i in `sort -u file1.txt` #the small dot here is backquote
: do
: echo $i
: done
: the file1.txt consists of two sentences :
: I am a boy
: you are a girl
: after I run the script, the output is
: $ ./li.sh
o*a
10 楼
this is the kind of cool solution i think:)
a
【在 w**n 的大作中提到】
: add following before sort
: IFS=\n
: works for me
: br />
w*n
11 楼
yeah, you're right.
it is my typo, actually no export needed
【在 l*l 的大作中提到】
: #!/bin/sh
: NUM=`cat file1.txt| wc -l`
: COUNT=1
: while [ $COUNT -le $NUM ]
: do
: sort -u file1.txt | sed -n $COUNT\p
: COUNT=`expr $COUNT + 1`
: done
it is my typo, actually no export needed
【在 l*l 的大作中提到】
: #!/bin/sh
: NUM=`cat file1.txt| wc -l`
: COUNT=1
: while [ $COUNT -le $NUM ]
: do
: sort -u file1.txt | sed -n $COUNT\p
: COUNT=`expr $COUNT + 1`
: done
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