مشروع نظم PDF

# مشروع نظم The document shows a series of commands being typed into a Linux terminal. - `echo "dalia" | tr [a-z] [A-Z]` - `echo "dalia2005" | tr -d '[:digit:]'` - `nano txt.sh` - `./txt.sh` - `chmod 777 txt.sh` - `./txt.sh` The commands are designed to manipulate text using the `tr` command: - `...

# مشروع نظم The document shows a series of commands being typed into a Linux terminal. - `echo "dalia" | tr [a-z] [A-Z]` - `echo "dalia2005" | tr -d '[:digit:]'` - `nano txt.sh` - `./txt.sh` - `chmod 777 txt.sh` - `./txt.sh` The commands are designed to manipulate text using the `tr` command: - `echo "dalia" | tr [a-z] [A-Z]` prints `DALIA` by converting all lowercase letters into uppercase. - `echo "dalia2005" | tr -d '[:digit:]'` prints `dalia` by deleting all digits. The last 4 commands are related to a bash script stored in `txt.sh`. The commands are: - `nano txt.sh` to edit the script with the nano editor. - `./txt.sh` to run the script, which fails at first due to a permission error. - `chmod 777 txt.sh` to change the file's permissions, granting execute access. - `./txt.sh` to run the script again, which now prints `dalia` and `jeddah`. The bash script most probably contained the following lines: ``` echo "dalia" echo "jeddah" ```