03-24-2011
can you suggest one solid link or book that covers these basics...?
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
how do you show just the used disk space. using the cut and df command?? or does anyone have any other suggestions on how to do it a better way? (3 Replies)
Discussion started by: rookie22
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2. Shell Programming and Scripting
Hi,
I want to cut from a particular position to a particular position and retain the rest.
I tried this
cut -c31-51 file1.txt > file2.txt
But The characters from the position 31 to 51 were only present in file2.txt.
Is there a way to reverse this i.e to retain the rest except from... (1 Reply)
Discussion started by: ragavhere
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3. Shell Programming and Scripting
Gurus,
I need help with the cut command :
I have a file with garbage charaters at the beginning of each record; but these characters are not of the same length;
First record has 3 garbage chars to be removed; rest have 2;
If the length was consistent across all the records, I could have... (3 Replies)
Discussion started by: tru_tell
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4. Shell Programming and Scripting
Hi
Can anyone what I am doing wrong while using cut command.
for f in *.log
do
logfilename=$f
Log "Log file Name: $logfilename"
logfile1=`basename $logfilename .log`
flength=${#logfile1}
Log "file length $flength"
from_length=$(($flength - 15))
Log "from... (2 Replies)
Discussion started by: dgmm
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5. UNIX for Dummies Questions & Answers
hay
i am trying to get JUST the PID from the ps command.
my command line is:
ps -ef | grep "mintty" | cut -d' ' -f2
but i get an empty line. i assume that the delimiter is not just one space character, but can't figure out what should i do in order to do that.
i know i can use awk or cut... (8 Replies)
Discussion started by: ran ber
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6. Shell Programming and Scripting
hi,
i have a file
abc,"an,ab",cde,efg
abc,anab,cde,efg and need to cut the second field so the output should be abc,cde,efg and i have used cut -d',' -f1-1,3- but its giving me
abc,ab",cde,efg
abc,cde,efg (4 Replies)
Discussion started by: ATWC
4 Replies
7. UNIX for Beginners Questions & Answers
I'm a complete beginner in UNIX (and not a computer science student either), just undergoing a tutoring course. Trying to replicate the instructions on my own I directed output of the ls listing command (lists all files of my home directory ) to My_dir.tsv file (see the screenshot) to make use of... (9 Replies)
Discussion started by: scrutinizerix
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8. Shell Programming and Scripting
VARIABLE="jhovan 5259 5241 0 20:11 ? 00:00:00 /proc/self/exe --type=gpu-process --channel=5182.0.1597089149 --supports-dual-gpus=false --gpu-driver-bug-workarounds=2,45,57 --disable-accelerated-video-decode --gpu-vendor-id=0x80ee --gpu-device-id=0xbeef --gpu-driver-vendor... (3 Replies)
Discussion started by: SkySmart
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9. Shell Programming and Scripting
im currently running the following command to grab all arguments in front of a script, directly from the process table.
# cat /tmp/allmyprocs
ubuntu 9933 27793 0 03:29 pts/0 00:00:00 /bin/sh ./prying.sh
ubuntu 9941 9933 0 03:29 pts/0 00:00:00 sh
ubuntu 9952 9941 0 03:29... (1 Reply)
Discussion started by: SkySmart
1 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)