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Top Forums Shell Programming and Scripting Recursively cat files in a directory with filename printed first. Post 302719501 by Scrutinizer on Monday 22nd of October 2012 02:39:05 PM
Old 10-22-2012
Quote:
Originally Posted by alister
[..]
WARNING: Pedantic piconit (of which you are probably aware) ahead.

That will still have problems with leading/trailing spaces and backslashes. Misinterpretation of such filenames manifests as an inability to find a file that exists or as reading the wrong file.

To remedy those shortcomings:
Code:
while IFS= read -r filename

Regards,
Alister
[..]
Indeed Smilie you are correct. I did not want to overcomplicate things, but file names with spaces occur quite frequently so I felt that was the most important note to make...

To complete the quest for the most robust solution we should probably also use printf rather than echo, since not all echoes are immune to special characters:

Code:
printf "%s\n" "$file"

This User Gave Thanks to Scrutinizer For This Post:
 

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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)
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