Hi ,
Can anybody explain how this perl one liner works..
It is to test whether the number is prime or not
perl -le 'print "PRIME" if (1 x shift) !~ /^(11+)\1+$/' 19
Thanks in advance
Shihab (2 Replies)
Greetings, I attempting to create a line statement that will do the following:
1. Read the input file
2. Extract lines containing certain keep words
3. Print the lines in a tabular format (CSV)
Help is what I have so far:
# cat text.tx | egrep -i -e "(Check Name) | (Risk Level) |... (6 Replies)
I want to use SED to replace all new line characters of a file, I googled and found this one liner
sed '{:q;N;s/\n//g;t q}' infile
what do :q;N; and t q mean in this script? (6 Replies)
abc/abc1/abc2/abc3/abc4
i need a script to pick this above path when ever
any patterns like the below will be found.
abc/abc1
abc/abc1/abc2
abc1/abc2/abc3
abc2/abc3/abc4
abc2/abc3/
etc ....
etc.....
not only the above 5 but like these one..
any one liner will be of great... (1 Reply)
Hi I have a log data that shows chunks of data like this:
thisis example test, this is example test, this is example test
thisis example test, this is example test, this is example test
thisis example test, this is example test, this is example test
thisis example test, this is example test,... (2 Replies)
Thanks for giving your time and effort to answer questions and helping newbies like me understand awk.
I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk.
Basically I'd like all lines with ISA sandwiched between... (9 Replies)
I have a data base of part numbers:
AAA Thing1
BBB Thing2
CCC Thing3
File one is a list of part numbers:
AAA234
BBB678
CCC2345
Is there a sed one-line that would compare a data base with and replace the part numbers so that the output looks like this?
AAA234 Thing1
BBB678 Thing2... (5 Replies)
Hello,
I am trying to sort/get some specific output from a ls command but however I am having no luck. The command I am using is
'ls -al /nim/dr/mksysb/\*'|grep -e _dr -e .tgz|cut -c37-90|cut -d" " -f2-8|cut -d_ -f1
the error is
bash: ls -al /nim/dr/mksysb/\*: No such file or directory
... (1 Reply)
Discussion started by: hasn318
1 Replies
LEARN ABOUT REDHAT
mac2unix
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)