05-31-2007
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
Simple question. How do I convert a unix text file to a dos text file?
Thanks
Helen (4 Replies)
Discussion started by: Bab00shka
4 Replies
2. UNIX for Dummies Questions & Answers
I know the Sun Solaries versions are ( 2.3 , 2.4 , 2.5 ... 7 , 8 ) .
But some times I see sun os v5.x what does it mean ??
also what is the last new machine for sun and what are its details specifications .
Thanks (3 Replies)
Discussion started by: tamemi
3 Replies
3. UNIX for Dummies Questions & Answers
Hello Again,
Ok guys. Thanks again for your help last time but I am in need of your experience again. I wrote this script:
#!/bin/sh
# List either files or directories in individual accounts
# using 1, 2 or 3 with invalid
case $1 in
echo select 1 to see the FILES in your... (3 Replies)
Discussion started by: catbad
3 Replies
4. Shell Programming and Scripting
this is the simple question, please help me!
the question is: how to send exactly 50 ICMP Echo request packets with 500 bytes of payload to 202.139.129.221?
I tried to use ping -F 500 202.139.129.221, but it didn't work.
Thanks! (6 Replies)
Discussion started by: kikikaka
6 Replies
5. UNIX for Dummies Questions & Answers
I am trying to check through all of a certain type of file in all main directories, and find the top 10 that are taking up the most space. How can I do that? I was thinking like du *.file | sort -n | head (1 Reply)
Discussion started by: wallacer
1 Replies
6. UNIX for Dummies Questions & Answers
Hi everybody:
Could anybody tell me if I have several files which each one it has this pattern name:
name1.dat name2.dat name3.dat name4.dat name10.dat name11.dat name30.dat
If I would like create one like:
name_total.dat
If I do:
paste name*.dat > name_total.dat (15 Replies)
Discussion started by: tonet
15 Replies
7. Shell Programming and Scripting
I'm looking to write a script that takes a certain directory and gzips all its files that are older than 2 days. I've done some research but for the life of me, I can't even get any files gzipped. Any help would be greatly appreciated! (3 Replies)
Discussion started by: adrockrocks
3 Replies
8. Shell Programming and Scripting
pattern matching porblem.
I have a file with lines like this:
hdisk2 blah 03
hdisk3 blah 03
hdisk21 blat 06
hdisk23 blah 06
hdisk210 blat 06
So I want to grep for just hdisk2, but I get back as you would expect
hdisk2
dhsik21
hdisk23
hdisk210
I tried several... (1 Reply)
Discussion started by: adder2
1 Replies
9. Shell Programming and Scripting
Hi,
I've FTPed some text files from windows to my Linux workstation. I'm finding that the characters for quotes (") have been replaced with control characters <93> and <94>. and apostrophes (') have been replaced with what looks like control character <92>.
I have attempted the following... (15 Replies)
Discussion started by: larryjmoon
15 Replies
10. Shell Programming and Scripting
Hi! I'm trying to do this:
1 -
2 -
3 -
4 -
5 -
I'm using seq for this:
seq 1 20 > filename.txt
How do I get the "-"? I've tried -f per man but can't get anything to work. Also, is there an easier or better way than using sequence? Thanks! (6 Replies)
Discussion started by: TonyBe
6 Replies
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 Also
grep(1), paste(1)
cut(1)