Sponsored Content
Top Forums UNIX for Dummies Questions & Answers [Solved] Removing control-m characters from shell script Post 302729777 by bdittmar on Sunday 11th of November 2012 11:09:11 AM
Old 11-11-2012
dos2unix , unix2dos

Quote:
Originally Posted by abhi_123
Hi All,

I need to remove control m character from a file.

Steps which i am doing in shell script are:
1) We are comparing the header of the file to the database table header

Here the file header has control-m characters. How do i remove it.
Please help. Below are the steps i am using, but is not working out.

v_header=`sed 1q $v_sftphomedir/$v_finalsourcefile`
echo $v_header |tr -d '\015' > v_avilableheader
or
sed 's/^M//g' $v_header Smilie


Please help.
Hello,

If you copy a file created or modified in Windows or DOS to a Linux/Unix file system, you sometimes find ^M characters at the end of each line.

try to use dos2unix / unix2dos.

Regards

Last edited by bdittmar; 11-11-2012 at 12:13 PM.. Reason: Add line
 

10 More Discussions You Might Find Interesting

1. Programming

Identifying and removing control characters in a file.

What is the best method to identify an remove control characters in a file. Would it be easier to do this in Unix or in C. (0 Replies)
Discussion started by: oracle8
0 Replies

2. Shell Programming and Scripting

Removing control-Ms (^M)

Anyone know how to remove ^M's from a text file using sed command? (6 Replies)
Discussion started by: djkane
6 Replies

3. Shell Programming and Scripting

control over shell script

Hi.. I have a perl program that uses "system" to execute a shell script called startengine. The script "startengine" itself calls a lot of other smaller scripts to setup the engine etc. It finally has to execute ./engine which is another shell script which is long and takes a long time to... (3 Replies)
Discussion started by: JLJ
3 Replies

4. Shell Programming and Scripting

How to Control Cronjobs using Shell Script??

Hi All, Now i am running the 3 oracle procedures one by one manually. Query: If 1st Procedure OUT_PUT is Success, then call 2nd Procedure. If 2nd Procedure OUT_PUT is Success, then call 3rd Procedure. If 1st Procedure is failed, then no need of calling the other ... (8 Replies)
Discussion started by: hanu_oracle
8 Replies

5. Shell Programming and Scripting

help removing characters for output file in shell script

hi i'm new to shell scripts and have a small problem i am running a batch converter that returns all flash .flv files in a directory and create a png image from each one the problem i have is the $1 variable , its ok on the first call but on the secound call $1.png , i have extra... (1 Reply)
Discussion started by: wingchun22
1 Replies

6. Shell Programming and Scripting

Control browser from shell script

I have a browser running in a separate virtual terminal and would like to be able to send shortcut codes (e.g. ctrl+A) to the browser (and have it react) from a bash script in a separate virtual terminal. I need to keep the script in the separate virtual terminal. (2 Replies)
Discussion started by: slak0
2 Replies

7. Shell Programming and Scripting

Version Control Through the Shell Script

Version Control Through the Shell Script Hi Guys, Apologize for the big request, please take some time and read it completely... This is Very important for me, and ur help is Very much Appriciated. I want to maintain the Version control to all my scripts running in Production server, I am... (6 Replies)
Discussion started by: Anji
6 Replies

8. Shell Programming and Scripting

Removing special characters - Control M

I have developed a small script to remove the Control M characters that get embedded when we move any file from Windows to Unix. For some reason, its not working in all scenarios. Some times I still see the ^M not being removed. Is there anything missing in the script: cd ${inputDir}... (7 Replies)
Discussion started by: vskr72
7 Replies

9. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

sed -e "s// /g" old.txt > new.txt While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped... (11 Replies)
Discussion started by: ijustneeda
11 Replies

10. UNIX for Dummies Questions & Answers

[solved]removing characters from a mass of file names

I found a closed thread that helped quite a bit. I tried adding the URL, but I can't because I don't have enough points... ? Modifying the syntax to remove ! ~ find . -type f -name '*~\!]*' | while IFS= read -r; do mv -- "$REPLY" "${REPLY//~\!]}"; done These messages are... (2 Replies)
Discussion started by: rabidphilbrick
2 Replies
SCRIPT(1)                                                          User Commands                                                         SCRIPT(1)

NAME
script - make typescript of terminal session SYNOPSIS
script [options] [file] DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves the dialogue in this file. If no filename is given, the dialogue is saved in the file type- script. OPTIONS
-a, --append Append the output to file or to typescript, retaining the prior contents. -c, --command command Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves differently when its stdout is not a tty. -e, --return Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n. -f, --flush Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can supervise real-time what is being done using `cat foo'. --force Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic link. -q, --quiet Be quiet (do not write start and done messages to standard output). -t[file], --timing[=file] Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used to replay typescripts with realistic typing and output delays. -V, --version Display version information and exit. -h, --help Display help text and exit. NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. It is not recommended to run script in non-interactive shells. The inner shell of script is always interactive, and this could lead to unexpected results. If you use script in the shell initialization file, you have to avoid entering an infinite loop. You can use for example the .profile file, which is read by login shells only: if test -t 0 ; then script exit fi You should also avoid use of script in command pipes, as script can read more input than you would expect. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1) HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for example: echo foo | script), then the session can hang, because the interactive shell within the script session misses EOF and script has no clue when to close the session. See the NOTES section for more information. AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils /util-linux/>. util-linux June 2014 SCRIPT(1)
All times are GMT -4. The time now is 09:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy