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Full Discussion: Aligning a file
Top Forums Shell Programming and Scripting Aligning a file Post 302914090 by ctrld on Thursday 21st of August 2014 10:36:36 PM
Old 08-21-2014
Thanks Corona and Yoda.

I had already tried column command and it is aligning the lines without "==>" also.
For example, if I have a line like below in my input.txt the output goes wrong.

Code:
cat input.txt

abc
qwert
qwer
afweferf
wdfwefwe ==> kjhjkwdd
mnmn ==> jkjkjwekj
poiu ==> lklklke
tytyutut ==> olkjmnsmn
This text need not be aligned.

column -t input.txt
Code:
abc
qwert
qwer
afweferf
wdfwefwe  ==>   kjhjkwdd
mnmn      ==>   jkjkjwekj
poiu      ==>   lklklke
tytyutut  ==>   olkjmnsmn
This      text  need       not  be  aligned.

If I try column -s "==>" -t input.txt:
Code:
 
column -s "==>" -t input.txt
abc
qwert
qwer
afweferf
wdfwefwe                         kjhjkwdd
mnmn                             jkjkjwekj
poiu                             lklklke
tytyutut                         olkjmnsmn
This text need not be aligned.

The ==> is getting removed.

---------- Post updated at 08:06 AM ---------- Previous update was at 07:30 AM ----------

I just noticed one thing, the text before "==>" does not exceed 50 characters in max length. I think placing the ==> at exactly 50th character position should do the trick.
 

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dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME
dos2unix - DOS/MAC to UNIX text file format converter SYNOPSYS
dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates dos2unix under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. dos2unix Convert and replace a.txt. Convert and replace b.txt. dos2unix a.txt b.txt dos2unix -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. Convert c.txt from Mac to Unix ascii format. dos2unix a.txt -c iso b.txt dos2unix -c ascii a.txt -c iso b.txt dos2unix -c mac a.txt b.txt Convert and replace a.txt while keeping original date stamp. dos2unix -k a.txt dos2unix -k -o a.txt Convert a.txt and write to e.txt. dos2unix -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. dos2unix -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. dos2unix a.txt -n b.txt e.txt dos2unix -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHORS
Benjamin Lin - <blin@socs.uts.edu.au> Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org> MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
unix2dos(1) mac2unix(1) 1995.03.31 dos2unix v3.0 dos2unix(1)
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