UNIX for Dummies Questions & Answers

$ cat > test.txt
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z

#!/bin/bash
#
# append.sh
#
while read line ; do
    printf ${line}
done < $1

$ ./append.sh test.txt
abcdefghijklmnopqrstuvwxyz
$ tr -d '\n' < test.txt
abcdefghijklmnopqrstuvwxyz
$ awk '{prinf $0}' file.txt
abcdefghijklmnopqrstuvwxyz

bash:cat /tmp/test$$ -prints this
#define hcv 54
 #define f 8
  #define s 354
 jae
 feh
  h
  f*h
  adssfh

bash:sed "/#define.*/w /tmp/test$$" test ; sed '{s_[/t ]*#define[\t ]\+\(\<.\+\>\)[\t ]\+\(\<.\+\>\)_\{s/\1/\2/\};_}' /tmp/test$$ > /tmp/test2$$ ; cat /tmp/test2$$ | tr -d '\n' > file$$; cat file$$ -prints nothing
bash:cat /tmp/test2$$ - prints that should print
{s/hcv/54/};
{s/f/8/};
{s/s/354/};