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Try:
sed 1d file > newfiletail -n+2 file > newfileawk NR-1 file > newfile With bash:
{
read
while IFS= read -r line
do
printf "%s\n" "$line"
done
} < file > newfile

I am not exactly sure what you are trying to achieve here with the subshells and the echos. If you want to assign a string to a variable you simply do:
...

I wouldn't call this sorting. But the following brute force awk script seems to do what your want:
awk '
NR == 1 {
l1 = $0
printf("%s", $0)
combine = 1
next
}...

sed 's/\([A-Z]\)\.\([A-Z]\)/\1. \2/g'\1 is the 1st matching \(...\) etc.

Try:

awk -v str="$str" '$0 ~ str' file

try also:
typeset -u fl
while read -a line
do
c=0
for word in ${line[@]}
do
fl=${word[@]:0:1}
line[$c]="$fl${word[@]:1}"
(( c = c + 1 ))
done
echo ${line[@]}
done <...

Had this sitting around. Use nawk on solaris.
awk 'function titlecase(STR, N, M, A, OUT)
{
OUT=""
N=split(STR, A, " ");
for(M=1; M<=N; M++)
{
...

In BASH using tr command:
#!/bin/bash

for words in are utilities ready for hurricane sandy
do
for((i=0;i<${#words};i++))
do
if [ $i -eq 0 ]
then
echo -e...

It always good to provide your input and desired output.

try this..

To remove - if it is present at the start of the line.
awk '{ sub("^-","",$0)}1' fileTo remove first instance of -

awk '{...

-F is just the input field separator. The output field separator is controlled by the special variable OFS.

awk '{ ... }' OFS=";" filename

Try:

curl -d "$(eval echo \"$datestring\")" -b cookie.txt -c cookie.txt -L "$url"

So is it just $datastring that contains $variables that you need to expand?

Edit: Yes, the expanded $url variable will need to be quoted to ensure the shell dosn't intrepret anything within it....

Double quotes aren't so good if URL contains a dollar sign ($), the shell will try and expand it.

Perhaps the URL contains a ampersand (&) character causing the curl to be run in the background.

Why do you need to do an eval instead of invoking curl directly?

For debuging purposes try...

Remove the 2nd append string 'a' and try..
sed '/patternstring/ a\
new line string \
new line string 2' file1

Paste the output of cat -A input_file

Are you telling that the file is unchanged? Of course it will not get modified.


awk '!/^[ \t]*$/' input_file > out_file

#or use sed -i to change...

perl -ne '(!/^\s+/)&&print' inputfile
@locoroco: ahmed101's solution works perfectly.

@CarloM: sed '/^[[:space:]]*$/d'

grep -v . inputfile > outputfile

You want to remove empty lines?


awk '!/^[ \t]*$/' input_file


--ahamed

Try sed '/^[:space:]*$/d'.

I understand now. I had faced a similar situation before. The output.dat file I got from wget -qO output.dat <hostname> had a ^M at the end of every line. This happens when format of file is...

Paste a sample input!...

--ahamed

---------- Post updated at 04:46 AM ---------- Previous update was at 04:37 AM ----------

Try this...

awk -F"[{}:,]" '{for(i=1;i<=NF;i++){if($i ~...

Try the code in the previous post and let me know if it works for you...

--ahamed

As a rule-of-thumb, you should always double-quote variables.

What happens with:

mv "$oldfilename" "$newfilename"

Maybe not the best solution, but for something in pure shell, and a few minutes effort, it'll at lest serve as an example:


#!/usr/bin/env ksh
# or for bash put next line at top
#!/usr/bin/env...