我使用sed从文件中提取前69行。
sed -n '1,69p' file.vcf > header.vcf
如何将它放在另一个文件的开头（拳头线）？
答案 0 :(得分：1)
文件{ head -n69 file.vcf; cat other.vcf; } >tmp$$ && mv tmp$$ other.vcf
开头的69行的一种方法是：
head -n69 file.vcf file.vcf输出cat other.vcf的前69行。 other.vcf输出整个>tmp$$。 && mv tmp$$ other.vcf在临时文件中捕获该输出。如果临时文件的创建成功，other.vcf会导致com.teacherapp.adapter;
import java.util.List;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import com.koushikdutta.urlimageviewhelper.UrlImageViewCallback;
import com.koushikdutta.urlimageviewhelper.UrlImageViewHelper;
import com.mikhaellopez.circularimageview.CircularImageView;
import com.teacherapp.async.GetMarksAsync;
import com.teacherapp.bean.TeacherBean;
import com.teacherapp.fragments.MarkeUpdateFragment;
import com.teacherapp.utility.ConstantTeacher;
import com.wemited.schoolfly.teacherapp.R;
public class MarksListAdaptor extends BaseAdapter {
List<TeacherBean> recentitems;
LayoutInflater inflate;
TeacherBean item;
AlertDialog alertDialog, fpDialog;
public static final String KEY_SETTING = "setting";
public static CheckBox check_img;
Context context;
@SuppressWarnings("unused")
private boolean isChecking = true;
@SuppressWarnings("unused")
private int mCheckedId = R.id.type1;
public static String status_all;
int position1;
//String marks;
public MarksListAdaptor(Activity context, List<TeacherBean> recentitems,
String string) {
this.recentitems = recentitems;
inflate = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.context = context;
status_all = string;
}
@Override
public int getCount() {
return recentitems.size();
}
@Override
public Object getItem(int position) {
return recentitems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
public static class ViewHolder {
public TextView txt_name, txt_father;
public CircularImageView logo_img;
public EditText edt_marks, edt_grad;
}
@SuppressLint("InflateParams")
@SuppressWarnings("unused")
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
item = recentitems.get(position);
final TeacherBean item1 = (TeacherBean) getItem(position);
View myview = convertView;
if (convertView == null) {
myview = inflate.inflate(R.layout.stud_mark_list_item, null);
}
final ViewHolder holder = new ViewHolder();
holder.txt_name = (TextView) myview.findViewById(R.id.txt_name);
holder.txt_father = (TextView) myview.findViewById(R.id.txt_father);
holder.logo_img = (CircularImageView) myview.findViewById(R.id.img);
holder.edt_marks = (EditText) myview.findViewById(R.id.edt_marks);
holder.edt_grad = (EditText) myview.findViewById(R.id.edt_grad);
holder.txt_name.setText("" + item.getStudent_name());
holder.txt_father.setText("" + item.getStudent_roll_no());
if (status_all.equals("0")) {
holder.edt_marks.setVisibility(View.INVISIBLE);
holder.edt_grad.setVisibility(View.VISIBLE);
} else {
holder.edt_grad.setVisibility(View.INVISIBLE);
holder.edt_marks.setVisibility(View.VISIBLE);
}
String logo = ConstantTeacher.img_base + item.getStudent_img();
holder.logo_img.setAnimation(null);
UrlImageViewHelper.setUrlDrawable(holder.logo_img, logo,
R.drawable.ic_launcher, new UrlImageViewCallback() {
@Override
public void onLoaded(ImageView imageView,
Bitmap loadedBitmap, String url,
boolean loadedFromCache) {
if (!loadedFromCache) {
}
}
});
holder.edt_marks.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
String marks = holder.edt_marks.getText().toString();
GetMarksAsync.status_list.set(position, marks);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
holder.edt_grad.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
String grad = holder.edt_grad.getText().toString();
System.out.println("marks"+grad);
GetMarksAsync.status_list.set(position, grad);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
return myview;
}
}
替换为新版本。
答案 1 :(得分：1)
这可能适合你（GNU sed）：
sed -i -e '69r other.vcf' -e '69q' header.vcf
使用-i标志编辑输入文件。在第69行附加other.vcf并退出输入文件处理。
N.B。 other.vcf附加在第69行之后，第一个命令必须通过换行符或第一个-e标志的单独调用与第一个命令分开。
sed -i $'69{r other_file\n;q}' file
如果bash是shell，也会有效。
答案 2 :(得分：0)
试试这个：
sed -n'1,69p'file.vcf＆gt; header.vcf＆amp;＆amp; cat header.vcf otherfile＆gt; / tmp / abcd＆amp;＆amp; mv / tmp / abcd otherfile