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For example: wget http://somesite.com/TheFile.jpeg downloading: TheFile.tar.gz ... --09:30:42-- http://somesite.com/TheFile.jpeg => `/home/me/Downloads/TheFile.jpeg' Resolving somesite.co... xxx.xxx.xxx.xxx. Connecting to somesite.co|xxx.xxx.xxx.xxx|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1,614,820 (1.5M) [image/jpeg] 25% [======> ] 614,424 173.62K/s ETA 00:14 How can i get it to look like this downloading: TheFile.jpeg ... 25% [======> ] 614,424 173.62K/s ETA 00:14 I know curl can do that, however i need to get wget to do that job. You can use the following

vi bakup.sh 内容如下： cp -rf /var/tomcat6/logs/catalina.out /var/tomcat6/logs/catalina.`date +%Y-%m-%d`.log echo > /var/tomcat6/logs/catalina.out 保存 设置crontab，每天定时切割 首先需要确定你的服务器有没有安装crontab的服务，输入crontab -e命令，有反应就安装了。 如果没有安装，运行yum install vixie-cron 一键安装。 输入crontab -e命令，输入下面的内容： 1、00 00意思为00分00点，也就是凌晨0点，后面“ * * * ”为“ 日 月 年 ”无需定义 2、” /var/tomcat6/logs/backup.sh “为你的shell的路径。 59 23 * * * /var/tomcat6/logs/backup.sh OK ！ 大功告成， 指定每天的深夜11点59分的时候进行一次备份。也就是触发那个sh的运行。 $ service crond restart // 重启服务 backup.sh 示例 #!/bin/bash log_path=/data/tomcat-jwifi/logs d=`date +%Y-%m-%d` d7=`date -d'7 day ago' +%Y-%m-

I just want to match some text in a BASH script, i’v tried using sed, but I can’t seem to make it just output the match instead of replacing it with something. echo -E "TestT100String" | sed 's/[0-9]+/dontReplace/g' Which will output: TestTdontReplaceString Which isn’t what I want, I want it to output: 100 Ideally I would want it to put all the matches in an array. edit: Text input is coming in as a string: newName() { #Get input from function newNameTXT="$1" if [[ $newNameTXT ]]; then #Use code that im working on now, using the $newNameTXT string. fi } echo "TestT100String" | sed 's/[^0-9]*\(

I'm trying to run a sh script and get the following error on Mac: /usr/bin/perl^M: bad interpreter: No such file or directory How can I fix this? Remove ^M control chars with perl -i -pe 'y|\r||d' script.pl sergio /usr/bin/perl^M: Remove the ^M at the end of usr/bin/perl from the #! line at the beginning of the script. That is a spurious ASCII 13 character that is making the shell go crazy. Possibly you would need to inspect the file with a binary editor if you do not see the character. You could do like this to convert the file to Mac line-ending format: $ vi your_script.sh once in vi type:

Besides from this comic, I have seen some people write sudo !! . What is sudo bang bang? The bang bang ( !! ) command is a shortcut to repeat the previous command you entered in your terminal . This command is very useful when you forget that you need admin rights to make a certain action, and lets you repeat it with super-user rights just by typing sudo !! instead of typing arrow-up, scrolling to the beginning of the line, adding sudo and hitting enter (imagine scrolling through those loooong apt-get commands). So many seconds gained! Yay! There are many other bang-commands such as !x , !?x ,

I am trying to get a specific line from a text file. So far, online I have only seen stuff like sed, (I can only use the sh -not bash or sed or anything like that). I need to do this only using a basic shell script. cat file | while read line do #do something done I know how to iterate through lines, as shown above, but what if I just need to get the contents of a particular line sed: sed '5!d' file awk: awk 'NR==5' file micromoses Assuming line is a variable which holds your required line number, if you can use head and tail , then it is quite simple: head -n $line file | tail -1 If not, this

This question already has an answer here: shell script command not found when comparing string 1 answer I don't know what is the problem to fix Here is the code: #!/bin/sh while true do HOUR=$(date '+%H') TARGET=16 echo $HOUR if [$HOUR -gt $TARGET]; then mail -s "IP" "example@hotmail.com" <<EOF Global_IP=$(curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//') EOF echo "Sent" fi echo "Waiting..." sleep 3600 echo "Done waiting" done Please help! You have to add blanks after [ and before ] : if [ $HOUR -gt $TARGET ]; 来源： https://stackoverflow.com/questions/34809142/shell