You can both remove and add with sed:, making carriage returns into cr/lf and removing escape sequences:
The ^M is typed 'ctrl-v ctrl-m', the ^[ is 'ctrl-v escape'.
I have a requirement where i have to read from a .sh file a text lying bet characters like 'SELECT' & ';'...Please help me out in this. I am new to shell scripting. (2 Replies)
Hi All,
i am trying to remove all special charecters().,/\~!@#%^$*&^_- and others from a tab delimited file.
I am using the following code.
while read LINE
do
echo $LINE | tr -d '=;:`"<>,./?!@#$%^&(){}'|tr -d "-"|tr -d "'" | tr -d "_"
done < trial.txt > output.txt
Problem
... (10 Replies)
I have a text file that looks like this:
I want to delete the last character of first column in all rows so that my output looks like this:
Thanks a lot! (1 Reply)
When I use vi to see what's in the file I get this:
int add1(int x) {^M return x + 1;^M}
^Mint subtract1(int x) {^M return x - 1;^M}
^Mint double_it(int x) {^M return x * 2;^M}
^Mint halve_it(int x) {^Mreturn x / 2;^M}
^Mint main() {^M int myint;^M int result;^M ... (2 Replies)
I have a tab delimited file of the following format
2 L a
2 G b
2 L c
2 G a
3 G a
3 G b
3 L c
4 L a
4 G a
4 G b
4 L c
4 G a
..
...
I want to count the number of G's and L's with in the first column and the third column/categories such that I would get an output file: (6 Replies)
Guys,
I know that the below command will cut the 13th field from test.txt file
awk -F"|" '{print $13}' test.txt
The answer would be,
CA
CN
Ohio
If we see the 3 rd one, it has more than 2 characters. So i wanted to check this in if condition and i want to get the output if the 13th... (4 Replies)
Version Info:
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.8 (Tikanga)
$
$ uname -a
Linux stryker138 2.6.18-308.13.1.el5 #1 SMP Thu Jul 26 05:45:09 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
I redirected manpage of ksh command's output to a text file as shown... (6 Replies)
I am using flatfile, in that flat file we are getting the junk chars
1)I21001f<82>^Me<85>!h49 Service Charge
2) I21001f‚
e...!h49 Service Charge
please tell me how to remove all junk chars in unix scripts. (1 Reply)
Hi,
I need to create a test text file with the special characters \342\200\223 in it and to be able to use sed maybe to delete them
I tried doing it using vi by pressing CTRL-V and then typing 342 but it does not work. After pressing CTRL-V and typing 342 it seems to just insert the numbers... (1 Reply)
How can I refer to a file named esc[G ? I need to delete it or move it.
TIA (5 Replies)
Discussion started by: wbport
5 Replies
LEARN ABOUT DEBIAN
plan9-read
CAT(1) General Commands Manual CAT(1)NAME
cat, read, nobs - catenate files
SYNOPSIS
cat [ file ... ]
read [ -m ] [ -n nline ] [ file ... ]
nobs [ file ... ]
DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus
cat file
prints a file and
cat file1 file2 >file3
concatenates the first two files and places the result on the third.
If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input.
Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts.
The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines.
Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a-
time data. It never reads any more data from the input than it prints to the output.
Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is
useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window.
SOURCE
/src/cmd/cat.c
/src/cmd/read.c
/bin/nobs
SEE ALSO cp(1)DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines.
BUGS
Beware of and which destroy input files before reading them.
CAT(1)