What methods are there for Shell scripts to count the number of file lines?
This article mainly explains the "which Shell scripts count the number of file lines of the method", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in-depth, together to study and learn "which Shell scripts count the number of file lines" bar!
Get the number of lines in a single file
File: test1.sh
Line count: 20
Method one
The code is as follows:
Awk'{print NR} 'test1.sh | tail-N1
As shown in the figure:
Method two
The code is as follows:
Awk 'END {print NR}' test1.sh
As shown in the figure:
Method three
The code is as follows:
Grep-n "" test1.sh | awk-F:'{print'} | tail-N1
As shown in the figure:
Method 4
The code is as follows:
Sed-n'$= 'test1.sh
As shown in the figure:
Method five
The code is as follows:
Wc-l test1.sh
As shown in the figure:
Method 6
The code is as follows:
# cat test1.sh | wc-l
As shown in the figure:
Gets the number of lines of all files in a specific directory
The code is as follows:
#! / bin/bash
FilesCount=0
LinesCount=0
Function funCount ()
{
For file in `ls $1`
Do
If [- d $1 "/" $file]; then
FunCount $1 "/" $file
Else
Declare-I fileLines
FileLines= `sed-n'$='$1 "/" $file`
Let linesCount=$linesCount+$fileLines
Let filesCount=$filesCount+1
Fi
Done
}
If [$#-gt 0]; then
For m_dir in $@
Do
FunCount $m_dir
Done
Else
FunCount "."
Fi
Echo "filesCount = $filesCount"
Echo "linesCount = $linesCount"
How to use it:
1. For this catalog
The code is as follows:
. / count.sh
2. Count multiple directories
The code is as follows:
. / count.sh / tmp ~
The running effect is as follows:
Gets the number of lines of a specific directory-specific extension file
The code is as follows:
#! / bin/bash
Extens= (".c".cpp".h".hpp")
FilesCount=0
LinesCount=0
Function funCount ()
{
For file in `ls $1`
Do
If [- d $1 "/" $file]; then
FunCount $1 "/" $file
Else
FileName=$1 "/" $file
EXTENSION= "." ${fileName##*.}
Echo "fileName = $fileName Extension = $EXTENSION"
If [["${extens [@] / $EXTENSION/}"! = "${extens [@]}"]]; then
Declare-I fileLines
FileLines= `sed-n'$='$fileName`
Echo $fileName ":" $fileLines
Let linesCount=$linesCount+$fileLines
Let filesCount=$filesCount+1
Fi
Fi
Done
}
If [$#-gt 0]; then
For m_dir in $@
Do
FunCount $m_dir
Done
Else
FunCount "."
Fi
Echo "filesCount = $filesCount"
Echo "linesCount = $linesCount"
How to use it:
1. For this catalog
The code is as follows:
. / count.sh
2. Count multiple directories
The code is as follows:
. / count.sh / tmp ~
The running effect is as follows:
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