Questions tagged [wc]
`wc` utility counts newline, word, and byte for file(s) or standard input.
3
votes
3answers
117 views
Repairing the headers of phylip bioinformatics files to accurately reflect the updated number of samples in the file(s)
I have a dataset that I am working with made up of phylip files that I have been editing. Phylip format is a bioinformatics format that contains as a header the number of samples and the sequence ...
1
vote
1answer
45 views
Automatically print number of lines of command line output
In my fish shell, I am using fish command timer to automatically show the duration of each command after it has been executed. This is a neat feature, which I recommend.
Now I want something similar ...
0
votes
1answer
71 views
wc behaves differently on Unix and Linux
I observed different results when I tried echoing value and counting the number of characters with "wc -c" on Linux and SunOS(Unix).
root@SunOS-machine:~# echo "1" | wc -c
2
root@Linux-machine:...
0
votes
1answer
47 views
Does the wc command strip the trailing line feed from txt files?
I'm currently building a replica of the wc command line call (in C). I have a file [tst.txt]
and the C code to read that file. The wc tst.txt command responds with the output: 2 6 20 tst....
0
votes
2answers
57 views
Remove new line, space from file
I have many files in a directory each like so:
AAA
AA
AAAAAA
A
AAAA
I want to end up with this:
AAAAAAAAAAAAAAAA
So that when I run:
find ./ -name '*' -exec wc -m {} +
I get back 16, not 20+ ...
2
votes
3answers
59 views
Determine the number of directories inside a tar file without extracting it
I need to count directories inside an archive file (e.g. tar.bz) without extracting the archive. Note that the archive is too big so that it will be hard to extract then count directories using ls | ...
2
votes
1answer
57 views
Why does echo “a” | wc -m return 2? [duplicate]
Why does echo "a" | wc -m echo 2? Other variations in which I try to reduce the number of spaces yield the same result.
0
votes
2answers
67 views
Is there a quickest way to count lines in file which is of 4TB in linux?
Actually I have 4 TB of Txt file as Exported from Teradata records and I want to know How many records are there in that file.
2
votes
4answers
324 views
How to count the characters of jar files by wc
Under the folder /usr/hdp/2.6.4.0-91/tez_hive2/lib/
We have .jar files as the following
$ ls /usr/hdp/2.6.4.0-91/tez_hive2/lib/ | grep ".jar"
async-http-client-1.8.16.jar
azure-data-lake-store-sdk-...
0
votes
1answer
982 views
How to use wc, grep and ls to list all files that are at least 10,000,000 bytes in a directory? [duplicate]
Now I find that wc -c could show the size of file, then how to select them and list them?
It should be a single pipeline of commands.
0
votes
1answer
60 views
print number of lines and words in a single line with one spacing in shell scripting [closed]
When I am using wc -lw filename, I am getting output separated into two spaces. But I want only one space separated. How to do this?
0
votes
2answers
25 views
Save in a file first 7 file in the directory /bin that starts with c
I have write a command in the shell of linux to count the file (in total 8) starting with 'c'in the directory /bin
find /bin/[c]* -type f | wc -l
What I wish to do now, it's save the name of the ...
1
vote
4answers
248 views
Count the number of files and folders containing a certain string
Let's say I'm in the Desktop directory and want to count the number of files and directories whose name is exam. It should also count the files containing the string exam. So to sum it up I need to:
...
0
votes
1answer
119 views
run grep and wc -l in multiple files in recursive manner
I have multiple fasta files I want to count the lines starting with ">" (no quotes).
What I usually do is
grep ">" file.fasta | wc -l
This works for one file at the time. I'm trying different ...
-1
votes
3answers
176 views
Why ls | wc outputs 3 lines in dir with 3 one-line files? [closed]
$ ls
1.txt 2.txt 3.txt
$ ls | wc
3 3 18
All three files has only 1 line, but ls|wc outputs '3'.
0
votes
2answers
159 views
How to use “wc -l ” on this line? Count rows within shell script and output the count value only [closed]
#!/bin/bash
/abc/qwerty/AAAooo/testing/CBA_Car/Config/Test_Ctr.env
OUTPUT_FILE_NAME=$1
DATE=$2
cp /abc/section/AAAooo/CBACenter/slack_2010-05-1.txt ${OUTPUT_FILE_NAME}
How do I perform a count ...
1
vote
2answers
745 views
How to get counts of the files present in remote directory using sftp command
I have a sftp server (Dbprd@101.102.130.23) .I am trying to connect to the below sftp server and search for the files which contains .txt in (/files/base/incomming) path and get the count of lines in ...
1
vote
1answer
276 views
searching letters in one line using grep and wc
I've created a text file with 1000 random uppercase and lowercase letters:
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c 1000 > file1
How many times does the word 'cat' appear in this file, ...
-1
votes
2answers
44 views
analyzing ps|wc output
First - i wanted to know how many process are currently running so i used this command:
$ ps | wc
i was expecting to one number, but the output was:
20 115 844
Three numbers were printed - with ...
-1
votes
1answer
56 views
Removing files containing, only, one row? [duplicate]
I have large number of csv files saved within a folder. I would like to, only, delete the csv files that contains one row, how can I do that?
1
vote
2answers
658 views
wc -c gives me one extra character count
So I made a script that adds users to the system, and I wanted to force the length of the usernames to 8 characters or below.
#!/bin/bash
# Only works if you're root
for ((a=1;a>0;a)); do
if [[ ...
1
vote
4answers
48 views
Finding string multiple positions in a large text file
I need to find the exact positions within the text of a certain string. i.e.
File:
to be or not to be, that's the question
String "to". Output needed: 0,14 (characters from the beginning until I ...
1
vote
1answer
47 views
Command output retention while counting lines
I was reading Count number of lines of output from previous program
and found it helpful. However, while
$ grep -i [pattern, file] | tee >(wc -l)
gives me a nice output of the grep lines and the ...
3
votes
3answers
192 views
Listing number of files in each folder where folder name matches a pattern
I would like to recursively search a directory tree and list the number of files available in each folder that have a name corresponding to a given string. In effect, I would like to return results of:...
2
votes
1answer
89 views
Finding the Count for a String on Multiple Zipped Files in Multiple Directories (non aggregated)
I'm trying to figure out the number of lines that contain the strings "event" and "type". The files I want to search through are in multiple folders and are zipped. I'm able to get an aggregated count ...
6
votes
1answer
1k views
Finding number of lines using find command
Consider the R source code repository found at https://cloud.r-project.org/src/base/R-3/R-3.4.4.tar.gz . I unzipped the repository into a folder. Now, I wish to find out how many total lines are ...
1
vote
3answers
4k views
sort Find how many distinct values are among the certain column
For example, this is the list.txt
Joe 3
Jack 1
Ulysses 6
Fox 2
Cassidy 1
Jones 6
Kevin 7
Then the output should be 5 because there are 5 different values in the 2rd column.
How should I finish ...
0
votes
3answers
4k views
Use -grep to count number of 6-letter words start with 'bar' and ends with 'i' or 'n'
I want to count the number of 6-letter words that start with 'bar' and end with 'i' or 'n'.
For example, given this file:
barxxi
barxxc
barxxn
barqwq
barovo
the output should be 2 (integer), since ...
11
votes
2answers
2k views
Why does wc <<<“$string” show a one-byte-longer length than printf “$string” | wc?
Accidentially, I found out that wc counts differently depending on how it gets the input from bash:
$ s='hello'
$ wc -m <<<"$s"
6
$ wc -c <<<"$s"
6
$ printf '%s' "$s" | wc -m
5
$ ...
1
vote
2answers
359 views
Given two files, how do I find the total number of line changes?
I tried using this command to compute number of lines changed between two files:
diff -U 0 file1 file2 | grep ^@ | wc -l
My problem with this command is that if one file has only one line, and the ...
0
votes
1answer
27 views
How to find how many paragraphs in a file?
For example
1006.2100 49.2000
1015.6100 47.7000
1023.1100 25.2000
1024.2200 33.3000
1025.5100 26.3000
1040.6100 29.0000
1151.57 3
169.1900 31.5000
174.9900 31.5000
193.1000 19.1000
196.4500 17.9000
...
11
votes
8answers
6k views
Count the number of blank lines at the end of file
I have a file with blank lines at the end of the file.
Can I use grep to count the number of blank lines at the end of the file with the file name being passed as variable in the script?
1
vote
1answer
738 views
Print out variables from subshell to parent shell [duplicate]
Very new to Bash and pretty confused about local/global variables/subshells. I'm not sure why the modified variables won't print out at the end of the function—I'm trying to print out a final line ...
0
votes
3answers
5k views
Counting the characters of each line with wc
Is it possible to use wc to count the chars of each line instead of the total amount of chars?
e.g.
echo -e foo\\nbar\\nbazz | grep -i ba
returns:
bar
bazz
So why doesn't echo -e foo\\nbar\\...
3
votes
2answers
79 views
How to get the results of ls piped to wc when running inside of a for loop?
So I am trying to make this a single command instead of having to dump the data to a file and then cat the file and pipe the output to wc -l. The whole line of code looks like this:
for file in `...
1
vote
2answers
1k views
Counting files, directories, etc. in given directory and formatting output on screen
Just started a scripting class and could use some help. I am writing a script to inspect the file names of every file and directory in a given directory and accumulate a count of Every file, ...
0
votes
4answers
2k views
Count number of directories
I need a script or command that prints a number of directories which name begins from "lib" in whole directory subtree. I was trying to do it using find, grep, and wc but can't scan all directories. ...
0
votes
1answer
2k views
grep for a string in multiple files under tar and print wc -l
I am looking for a command / script that can search for the given string in multiple files under a given tar.gz file and give the wc -l of the string along with specific file name.
I tried the below ...
0
votes
2answers
507 views
sed count lines between pattern - multiple files
I have multiple .txt files in one directory. Each file has a section:
DONE
item 1
item 2
item 3
DONE
I would like to count the number of lines between the two DONE markers for each file seperately.
...
4
votes
6answers
930 views
unix: get characters 10 to 80 in a file
I have a file containing line-separated text:
GCAACACGGTGGGAGCACGTCAACAAGGAGTAATTCTTCAAGACCGTTCCAAAAACAGCATGCAAGAGCG
GTCGAGCCTAGTCCATCAGCAAATGCCGTTTCCAGCAATGCAAAGAGAACGGGAAGGTATCAGTTCACCG
...
1
vote
3answers
4k views
Combined Word Count for Files in Directories
Is it possible to return a combined word count with wc only for certain files (like .txt files, for example) in a series of directories?
0
votes
1answer
111 views
Linux - how to get count of line in file [duplicate]
Can you tell me how to get the line count in a script?
PID_COUNT = 'cat /david/file1/test.sh | wc -l '
is not working, shows an error "illegal -l".
-1
votes
1answer
261 views
Solaris 9 - Word Count (wc) command gives wrong output with 'grep -v and ps' [duplicate]
When i use 'ps', 'egrep' and 'wc' command to count number of processes, it gives me wrong value. I am running the command in 'Solaris 9' machine.
MyServer $ ps -fu root | egrep -v 'bash|ksh|ssh|ef|...
24
votes
3answers
1k views
Byte count of “ls -l <random file>” versus that of “wc -c <random file>”
Is there any possible situation when
ls -l file.txt
is showing not the same number of bytes as
wc -c file.txt
In one script I found comparison of those two values. What could be the reason of ...
1
vote
2answers
708 views
Why does wc get wrong result with output from ps
To output all lines into a file /tmp/ps.txt
$ ps -e >/tmp/ps.txt
To count it with wc -l
$ wc -l /tmp/ps.txt
172
To count it without exporting a file.
$ ps -e | wc -l
173
Why ps -e | wc -l ...
2
votes
2answers
3k views
Counting number of lines in file regardless of line ending char
Suppose I'm given a variety of files, some with line endings of \r, \n and \r\n. How would I efficiently count the number of lines in a file when I don't know what to expect beforehand?
Obviously wc -...
1
vote
1answer
548 views
Send random data over TCP for a while, and count how many bytes were sent
To test data throughput, I want to 1) for X seconds 2) send random data 3) over TCP, and 4) to know afterwards exactly how many bytes were transmitted.
My best attempt (which is not much)
1) timeout ...
0
votes
1answer
54 views
How to create variable from piped data
The command I using is: ls -l . | totLines=$(wc -l) echo $totLines . My goal is display the total number of lines, but by assigning the output of wc -l a variable name, then displaying that variable's ...
6
votes
3answers
2k views
How to get the number of bytes in just one line of a file?
I am wondering how I can get the number of bytes in just one line of a file.
I know I can use wc -l to get the number of lines in a file, and wc -c to get the total number of bytes in a file. What I ...
-6
votes
1answer
237 views
