I need to check ftp'd incoming files for characters that are not alphanumeric,<tab>, <cr>, or <lf> characters. Each file would have 10-20,000 line with up to 3,000 characters per line. Should I use awk, sed, or grep and what would the command look like to do such a search? Thanks much to anyone... (2 Replies)
Sometimes obvious things... are not so obvious. I always thought that it was possible to grep non printable characters but not with my GNU grep (5.2.1) version.
printf "Hello\tWorld" | grep -l '\t'
printf "Hello\tWorld" | grep -l '\x09'
printf "Hello\tWorld" | grep -l '\x{09}'
None of them... (3 Replies)
I have been using OKI data Microline printers; models 590 and 591 to print a bar code using the following escape sequence:
\E^PA^H^C00^D^C^A^A^A\E^PB^H
The escape sequence is stored in a unix file which is edited using vi.
Now, we are considering Microline printer model 395C and the bar code... (3 Replies)
Hi,
We have a non printable character "®" in our file , we want to remove this character, we tried tr -dc '' < oldfile> newfile but this command is removing all new line entries along with the non printable character and all the records are coming in one line(it is changing the format of the... (2 Replies)
Hi,
in a file, i have records as below:
123|62|absnb|267629
123|267|28728|uiuip
123|567|26761|2676
i want to remove the non printable characters after the end of each record.
I guess there are certain charcters but not visible.
i don't know what character that is exactly.
I used... (2 Replies)
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)
Hallo Team,
I am trying to get rid of the dollar sign. I managed to remove all the other special characters but i am struggling with this one.
-bash-3.2$ cat -e missing_revenue_20141112.csv|less|head
BW0522168531211141180935668@196.23.110.141$
BW092218784121114-370120610@196.23.110.141$... (4 Replies)
Hi All,
I am trying to find non-printable characters in a string. The sting could have alphanumeric, puntuations and characters like (*&%$#.') but not non-printable (or that is what I think they are called) which are introduced when you copy any text from DOS to unix box.
Input string1:... (10 Replies)
Hi,
I have a huge file (50 Mil rows) which has certain non-printable ASCII characters in it. I am cleaning the file by deleting those characters using the following command -
tr -cd '\11\12\15\40-\176' < unclean_file > clean_file
Please note that I am excluding the following -
tab,... (6 Replies)
Discussion started by: rishigc
6 Replies
LEARN ABOUT MINIX
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the
standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)