Sponsored Content
Full Discussion: cat multiple files questions
Top Forums UNIX for Dummies Questions & Answers cat multiple files questions Post 302362325 by rlinsurf on Thursday 15th of October 2009 06:09:10 PM
Old 10-15-2009
Cool Smilie

Thanks very much.

---------- Post updated at 03:09 PM ---------- Previous update was at 01:20 PM ----------

Well, I checked out the mini script, and it isn't actually working.

Here's what I found. First, it doesn't look like double-quotes matter. You still get file not found errors. Only by placing the * outside the quotes, or double-quotes in this case, are the files recognized.

As well, it seems that instead of appending one file to the next, somehow, at least the way I tried it, the output file was being rm before the next append, so each file was simply appending to a now non-existing file.

As I understand it, wherever you say "my file" that means the filename of the output file, correct? So then the only place we're referring to the input files are the line:

Code:
for file in 'my file.'*

Is that right?

Last edited by rlinsurf; 10-15-2009 at 07:14 PM..
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

*BSD slices - multiple questions

Can you have a second primary slice on a second hdd? I know that primary slices are defined in the mbr, but where are all the sub partitions defined at? From the OBSD installation FAQ: What exactly is in the PBR? (0 Replies)
Discussion started by: Derrek
0 Replies

2. UNIX for Dummies Questions & Answers

cat files

Hi, I was a typical Windows guy. Like to do things just by clicking my mouse:cool:. I got a new job now...where they are big on unix. I am trying to wet my fingures now with unix. Haven't taken the dive yet. I am trying to find a solution for this problem. Please help me with some... (4 Replies)
Discussion started by: sandeep78
4 Replies

3. UNIX for Dummies Questions & Answers

Difference between cat , cat > , cat >> and touch !!!

Hi Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX? Thanks (6 Replies)
Discussion started by: skyineyes
6 Replies

4. Shell Programming and Scripting

cat certain files in directories to files named after the dir?

Hi all, I have a directory with many subdirectories each named like so: KOG0001, KOG0002, ...KOG9999. Each of these subdirectories contain a variable number two kinds of files (nuc and prot) named like so: Capitella_sp_nuc_hits.fasta (nuc) and Capitella_sp_prot_hits.fasta (prot). The... (2 Replies)
Discussion started by: kmkocot
2 Replies

5. Shell Programming and Scripting

bash: cat multiple files together except first line?

Hopefully the title summarized what I need help with. I have multiple files that I would like to concatenate in bash. ie: cat file1 file2 file3 > bigfile except I do not want to include the first line from each file (). Any help? Thanks. (6 Replies)
Discussion started by: sanimfj
6 Replies

6. UNIX Desktop Questions & Answers

trying to cat multiple pairs of files

I have a number of files in a directory named like this: fooP1, fooN1, fooP2, fooN2 ... fooP(i), fooN(i). I'd like to know how to combine each P and N pair into a single file, foo(i) TIA John Balwit (1 Reply)
Discussion started by: balwit
1 Replies

7. UNIX for Dummies Questions & Answers

CAT multiple files according to file name

I have a folder that contains a number of files with file names as follows: XX.YYYY..ZZZ.2014.001.000000 XX.YYYY..ZZZ.2014.001.000400 XX.YYYY..ZZZ.2014.001.000800 XX.YYYY..ZZZ.2014.001.001200 XX.YYYY..ZZZ.2014.001.001600 ..... XX.YYYY..ZZZ.2014.002.000000 XX.YYYY..ZZZ.2014.002.000400... (8 Replies)
Discussion started by: quakesrus
8 Replies

8. Shell Programming and Scripting

Select answers from multiple questions using shell script

I have a text file in this format Some lines.... Question no: 1 The question? A. Answer 1 B. Answer 2 C. Answer 3 D. Answer 4 Answer:B Some lines.... Question no: 2 The question? (choose 2) (10 Replies)
Discussion started by: zorrox
10 Replies

9. UNIX for Dummies Questions & Answers

Is there any way to cat multiple files and show filenames?

Hi, Is there any way to do a cat * where it shows the name of each file in the process? Similar to what more does below? $ more ?.sql :::::::::::::: 1.sql :::::::::::::: set linesize 200 select db_unique_name, cast( from_tz( cast(... (5 Replies)
Discussion started by: newbie_01
5 Replies

10. UNIX for Beginners Questions & Answers

Merge multiple columns into one using cat

I will like to merge several files using 'cat', but I observe the output is not consistent. the merge begins at the last line of the first file. file1.txt: 1234 1234 1234 file2.txt: aaaa bbbb cccc dddd cat file1.txt file2.txt > file3.txt file3.txt: 1234 1234 1234aaaa bbbb cccc... (13 Replies)
Discussion started by: geomarine
13 Replies
OD(1)								   User Commands							     OD(1)

NAME
od - dump files in octal and other formats SYNOPSIS
od [OPTION]... [FILE]... od [-abcdfilosx]... [FILE] [[+]OFFSET[.][b]] od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b] [+][LABEL][.][b]] DESCRIPTION
Write an unambiguous representation, octal bytes by default, of FILE to standard output. With more than one FILE argument, concatenate them in the listed order to form the input. With no FILE, or when FILE is -, read standard input. All arguments to long options are mandatory for short options. -A, --address-radix=RADIX decide how file offsets are printed -j, --skip-bytes=BYTES skip BYTES input bytes first -N, --read-bytes=BYTES limit dump to BYTES input bytes -S, --strings[=BYTES] output strings of at least BYTES graphic chars -t, --format=TYPE select output format or formats -v, --output-duplicates do not use * to mark line suppression -w, --width[=BYTES] output BYTES bytes per output line --traditional accept arguments in traditional form --help display this help and exit --version output version information and exit Traditional format specifications may be intermixed; they accumulate: -a same as -t a, select named characters, ignoring high-order bit -b same as -t o1, select octal bytes -c same as -t c, select ASCII characters or backslash escapes -d same as -t u2, select unsigned decimal 2-byte units -f same as -t fF, select floats -i same as -t dI, select decimal ints -l same as -t dL, select decimal longs -o same as -t o2, select octal 2-byte units -s same as -t d2, select decimal 2-byte units -x same as -t x2, select hexadecimal 2-byte units If first and second call formats both apply, the second format is assumed if the last operand begins with + or (if there are 2 operands) a digit. An OFFSET operand means -j OFFSET. LABEL is the pseudo-address at first byte printed, incremented when dump is progressing. For OFFSET and LABEL, a 0x or 0X prefix indicates hexadecimal; suffixes may be . for octal and b for multiply by 512. TYPE is made up of one or more of these specifications: a named character, ignoring high-order bit c ASCII character or backslash escape d[SIZE] signed decimal, SIZE bytes per integer f[SIZE] floating point, SIZE bytes per integer o[SIZE] octal, SIZE bytes per integer u[SIZE] unsigned decimal, SIZE bytes per integer x[SIZE] hexadecimal, SIZE bytes per integer SIZE is a number. For TYPE in doux, SIZE may also be C for sizeof(char), S for sizeof(short), I for sizeof(int) or L for sizeof(long). If TYPE is f, SIZE may also be F for sizeof(float), D for sizeof(double) or L for sizeof(long double). RADIX is d for decimal, o for octal, x for hexadecimal or n for none. BYTES is hexadecimal with 0x or 0X prefix, and may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y. Adding a z suffix to any type displays printable characters at the end of each output line. Option --string without a number implies 3; option --width without a number implies 32. By default, od uses -A o -t oS -w16. AUTHOR
Written by Jim Meyering. REPORTING BUGS
Report od bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report od translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for od is maintained as a Texinfo manual. If the info and od programs are properly installed at your site, the com- mand info coreutils 'od invocation' should give you access to the complete manual. GNU coreutils 8.5 February 2011 OD(1)
All times are GMT -4. The time now is 11:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy