10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi Team,
I have a file a1.txt with data as follows.
dfjakjf...asdfkasj</EnableQuotedIDs><SQL><SelectStatement modified='1' type='string'><!
The delimiter string: <SelectStatement modified='1' type='string'><!
dlm="<SelectStatement modified='1' type='string'><!
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2. Shell Programming and Scripting
Hey Guys,
I'm swamped writing code for the forums:
Could someone write a script or command line to safely delete files with special chars in filenames from a directory:
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3. UNIX for Dummies Questions & Answers
Hi guys,
I am trying to find the following string in a file, but I always get pattern not found error, not sure what is missing here. Can you help please?
I do a less to open the xrates.log and then do a /'="18"' in the file and tried various combinations to search the below string.
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4. Shell Programming and Scripting
Hi,
I have file
#cat drivers.txt
fcs0
fcs1
vscsi1
vscsi2
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I tried with "if condition" but it is not working.
cat drivers.txt| while read ADAP
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5. Shell Programming and Scripting
I have a file with multiple lines. From each line I want to get all strings that starts with '+' and ends with '/'. Then I want the strings to be separated by ' + '
Example input:
+$A$/NOUN+At/NSUFF_FEM_PL+K/CASE_INDEF_ACC
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6. Shell Programming and Scripting
Hi, I'm having trouble with awk print all characters between 2 patterns. I tried more then one solution found on this forum but with no success.
Probably my mistakes are due to the special characters "" and "]"in the search patterns.
Well, have a log file like this:
logfile.txt
... (3 Replies)
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7. Shell Programming and Scripting
Hi,
For years ive been using this script to do mass search & replaces on our websites. Its worked with all sorts of spaces, quotes, html or whatever with a little adjusting here and there. But I just cant get this pattern to work:
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8. Shell Programming and Scripting
here is my simple script to show process and owners except me:
ps `-ef |grep xterm |grep -v aucar` | while read a1 a2 a3 a4 a5 a6 a7 a8
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echo KILL..\($a1\).. $a2 |more
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9. Shell Programming and Scripting
Hi,
I need some advise on treating non printable chars over ascii value 126
Case 1 :
On some fields in the text , I need to retiain then 'as-is' and load to a database.I understand it also depends on database codepage.
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10. UNIX for Advanced & Expert Users
Hi,
One of our application is producing log files. But if we open the log file in vi or less or view mode, it shows all the special characters in it. The 'cat' shows correctly but it shows only last page. If I do 'cat' <file_name> | more, then again it shows special characters.
... (1 Reply)
Discussion started by: divakarp
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file(1) General Commands Manual file(1)
Name
file - determine file type
Syntax
file [ -c ] [ -f ffile] [ -m mfile] filename ...
Description
The command performs a series of tests on each filename argument in an attempt to classify it. If an argument appears to be ASCII, the
command examines the first 1024 bytes and tries to guess its language.
For character special files, part of this classification is information about which devices the system shows as active. In particular,
device-specific information such as controller type and unit, device type and unit, and status (offline, write locked, density, errors) is
returned. The general categories currently implemented are disk, tape, and terminal devices. The supported terminal devices include Local
Area Terminals (LAT) but not Local Area Network (LAN) pseudo-terminals.
The command uses the file to identify files that have some sort of magic number. A magic number is any numeric or string constant that
identifies the file containing the constant. Commentary at the beginning of explains its format.
Options
-c Checks the magic file for format errors by printing the internal representation of the magic file. No file typing is done under -c.
-f Interprets the following argument to be a file containing the names of the files to be examined.
-m Instructs file to use an alternate magic file.
Restrictions
It often does a poor job of distinguishing C programs, shell scripts, English text, and ASCII text.
It does not recognize many programming languages, including Modula, Pascal, and Lisp.
Files
/usr/lib/file/magic
See Also
magic(5)
file(1)
03-06-2010
