When I will do it with the 'head'-command I would get this line cut of 100 characters. Thats for the line ok.
But my problem is that I have a file with a size of maybe 1GB. And it could be possible that the content is only 1 line. All what I want is to cut the first 100 characters of the file. This can I do with the command:
Code:
cut –c100- $file > $file.tmp
But I do not know if I have only 1 line in file. It could also have more lines in it. And then this command won't work anymore, because it will cut the first 100 characters of each line.
So, what should I do? Is there a command to do it for both situations? Or in minumum I would like to know how can I cut the first 100 characters of the first line of file if there are more lines?
Hi Friends
I have a file
like
sample1.txt
------------
10998909.txt
10898990.txt
1898772222.txt
8980000000000.txt
I need to take first 3 characters of each line in a file and i need to print it '
like loop
109
108
189
898 (7 Replies)
I know this sounds simple, but I have a logfile with
> something
> something_else
> another_entry
...
how do I cut the first 2 characters off the left side? I tried to use
cut -c 1-2 somefile > someotherfile
but that just cut gave me the 2 left characters, I want to cut those out... (2 Replies)
Hi All,
Need to convert file names to upper case using tr command in Unix.
In a folder -> /apps/dd01/misc
there are two files like:
pi-abcd567sd.pdf
pi-efgh1.pdf
The output of should be like:
pi-ABCD567SD.pdf
pi-EFGH1.pdf
I have used the command to work as below:
for f... (3 Replies)
Guys,
can you help me in doing cut first 21 and 32-35 characters from file.
I tried with cut -c to cut first 21 characters ,It is succeeded.
But i need both first 21 and 32-35. (1 Reply)
hello everybody
i am looking for a shell to cut a flat file (with a long unique line) according to a certain number of characters and redirect every result to an output file.
here is an example
MyFile :
12 3 456 12 3 456 12 3 456 .....
and i took every 9-characters including BLANKS... (6 Replies)
Hi Gurus,
I am trying to execute the below command. However the output shows the value + path of the folder where the command is being executed. But I am only interested in the value but not the path.
du -hs /aps/inf/SeLogs
when I execute the above command, output is
32G... (5 Replies)
I need to cut the last seven characters of a variable length variable. The variable may be 7 characters or 70. I need to always be able to grab the last 7 characters. I looked at the cut command but it always seems to want to start at the beginning of a line, not the end and count backwards.
... (5 Replies)
Hi,
I would like to cut last 13 characters of a file name and take the rename the file name as follows:
Input:
A.DAT20110517033732
Output:
A.DAT
I have tried the following command and cut last 13 characters.
echo A.DAT20110517033732 | awk '{print substr($0, length($0)-13)}'
... (3 Replies)
Hi Everyone,
i have a file 1.txt
<a><a"" dd>aaaaauweopriuew</f><">!(^)!</aa></ff>
<a><a"" dd>bbbbbuweopriuew</f><">!(^*)!</aa></ff>
i know i can use
perl -p -i -e "s/>aaaaa/aa/g" 1.txt
perl -p -i -e "s/>bbbbb/bb/g" 1.txt
to acheive only keep the first two characters of the five characters,... (4 Replies)
Discussion started by: jimmy_y
4 Replies
LEARN ABOUT ULTRIX
cut
cut(1) General Commands Manual cut(1)Name
cut - cut out selected fields of each line of a file
Syntax
cut -clist [file1 file2...]
cut -flist [-dchar] [-s] [file1 file2...]
Description
Use the command to cut out columns from a table or fields from each line of a file. The fields as specified by list can be fixed length,
that is, character positions as on a punched card (-c option), or the length can vary from line to line and be marked with a field delim-
iter character like tab (-f option). The command can be used as a filter. If no files are given, the standard input is used.
Use to make horizontal ``cuts'' (by context) through a file, or to put files together in columns. To reorder columns in a table, use and
Options
list Specifies ranges that must be a comma-separated list of integer field numbers in increasing order. With optional - indicates
ranges as in the -o option of nroff/troff for page ranges; for example, 1,4,7; 1-3,8; -5,10 (short for 1-5,10); or 3- (short
for third through last field).
-clist Specifies character positions to be cut out. For example, -c1-72 would pass the first 72 characters of each line.
-flist Specifies the fields to be cut out. For example, -f1,7 copies the first and seventh field only. Lines with no field delim-
iters are passed through intact (useful for table subheadings), unless -s is specified.
-dchar Uses the specified character as the field delimiter. Default is tab. Space or other characters with special meaning to the
shell must be quoted. The -d option is used only in combination with the -f option, according to XPG3 and SVID2/SVID3.
-s Suppresses lines with no delimiter characters. Unless specified, lines with no delimiters are passed through untouched.
Either the -c or -f option must be specified.
Examples
Mapping of user IDs to names:
cut -d: -f1,5 /etc/passwd
To set name to the current login name for the csh shell:
set name=`who am i | cut -f1 -d" "`
To set name to the current login name for the sh, sh5, and ksh shells:
name=`who am i | cut -f1 -d" "`
Diagnostics
"line too long" A line can have no more than 511 characters or fields.
"bad list for c/f option"
Missing -c or -f option or incorrectly specified list. No error occurs if a line has fewer fields than the list calls
for.
"no fields" The list is empty.
See Alsogrep(1), paste(1)cut(1)
09-03-2014
